liebert®...figure 29 base detail drawing, 625/750kva liebert nxl, n+1 multi-module unit without...
TRANSCRIPT
Liebert®NXL™ UPS
Installation Manual500 kVA – 750 kVA, 0.9 PF, 60 Hz, Three-phase, Single-module and Mulit-module
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of this manual to see if the issue can be resolved by following outlined procedures. Visit https://www.VertivCo.com/en-us/support/ for additional assistance.
The information contained in this document is subject to change without notice and may not be suitable for all applications. While every precaution has been taken to ensure the accuracy and completeness of this document, Vertiv assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions. Refer to other local practices or building codes as applicable for the correct methods, tools, and materials to be used in performing procedures not specifically described in this document.
The products covered by this instruction manual are manufactured and/or sold by Vertiv This document is the property of Vertiv and contains confidential and proprietary information owned by Vertiv. Any copying, use or disclosure of it without the written permission of Vertiv is strictly prohibited.
Names of companies and products are trademarks or registered trademarks of the respective companies. Any questions regarding usage of trademark names should be directed to the original manufacturer.
TABLE OF CONTENTSIMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 MECHANICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2 Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.3 Environmental Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3.1 UPS Room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.3.2 Storing the UPS and Batteries for Delayed Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.4.1 Moving the Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.2 Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.3 Raised-Floor Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.4 Kick Plate Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51.4.5 Special Considerations for 1+N Parallel Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 System Composition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.6 Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.0 UPS ELECTRICAL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.1 External Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.2 Power Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.3 Sizing the Input Breaker feeding a Liebert® NXL™ UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3.1 Power Cable Connection Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.4 Control Cable and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4.1 Dry Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132.4.2 Multi-Module Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.4.3 Remote Input Breaker (RIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172.4.4 Inverter Output Breaker (IOB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.5 Digital LBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202.6 Configuring Neutral and Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.6.1 Four-Wire Input connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.6.2 Three-Wire Input connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.6.3 Preferred Grounding Configuration, Battery Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.6.4 Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222.6.5 High Resistance Ground Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.7 Grounding Diagrams, Single- and Multi-Module Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.0 OPTIONAL EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253.1 Single-Module System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
3.1.1 Matching Maintenance Bypass Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.2 Battery Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.3 Matching Liebert® NXL™ Battery Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.4 Matching Module Battery Disconnect—MBD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.5 Load Bus Synch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.1.6 Remote Alarm Status Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | i
3.2 Communication and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253.2.1 Alber® Monitoring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253.2.2 Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263.2.3 Input Contact Isolator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
4.0 INSTALLATION DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314.1 Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
5.0 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
FIGURESFigure 1 Cabinet arrangement—Liebert NXL, battery cabinets, maintenance bypass cabinet.
6Figure 2 Cabinet EMI plates - 625kVA and 750kVA only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 3 Kick plate and filter locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 4 Low-voltage cable installation—top entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Figure 5 External Interface Board connections layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Figure 6 Inter-Module Communication Board wiring diagram—Multi-modules . . . . . . . . . . . . . . 12Figure 7 Remote Input Breaker diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Figure 8 Remote Output Breaker diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 9 Inter-Module Communication Board wiring diagram—Digital LBS. . . . . . . . . . . . . . . . . . 16Figure 10 Grounding diagram, three-wire single-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure 11 Grounding diagram, four-wire single-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure 12 Grounding diagram, three-wire multi-module system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Figure 13 Grounding diagram, four-wire multi-module system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Figure 14 Control wiring, Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22Figure 15 Programmable relay board dialog box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23Figure 16 Input contact isolator dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Figure 17 Optional Input Contact Isolator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Figure 18 Main components, 500kVA Liebert NXL SMS and 1+N multi-module unit with static
bypass26Figure 19 Outline drawing, Liebert NXL 500kVA UPS SMS and 1+N multi-module unit with stat-
ic bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 20 Input terminal details, Liebert NXL 500kVA UPS, SMS and 1+N multi-module unit with staticbypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 21 Output terminal details, Liebert NXL 500kVA UPS, SMS and 1+N multi-module unit with static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Figure 22 Base drawing, Liebert NXL 500kVA UPS, SMS and 1+N multi-module unit with static bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 23 Field connections, shipping split 500kVA Liebert NXL, multi-module or SMS with static bypass, Page 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 24 Field connections, shipping split 500kVA Liebert NXL, multi-module or SMS with static bypass, Page 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | ii
Figure 25 Main components, 625/750kVA Liebert NXL, N+1 multi-module unit without static bypass34
Figure 26 Main components, 625/750kVA Liebert NXL UPS, SMS and 1+N multi-module unit with static bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 27 Outline drawing, 625/750kVA Liebert NXL, N+1 multi-module unit without static by-pass36
Figure 28 Outline Drawing, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with stat-ic bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 29 Base detail drawing, 625/750kVA Liebert NXL, N+1 multi-module unit without static bypass38
Figure 30 Base Drawing, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static bypass39
Figure 31 Input terminal detail, 625/750kVA Liebert NXL, N+1 multi-module unit without static bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 32 Input terminal detail, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with staticbypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 33 Output terminal detail, 625/750kVA Liebert NXL, N+1 multi-module unit without stat-ic bypass, cont’d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Figure 34 Output terminal detail, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static bypass, cont’d. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Figure 35 Shipping split 625/750kVA Liebert NXL without static bypass . . . . . . . . . . . . . . . . . . . . 44Figure 36 Shipping split 625/750kVA Liebert NXL without static bypass (continued) . . . . . . . 46Figure 37 Shipping Split, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static
bypass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Figure 38 Shipping Split, 625/750kVA Liebert NXL, SMS and 1+N multi-module unit with static
bypass, continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Figure 39 Single-input wire cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52Figure 40 Alternate Liebert NXL 500kVA bottom cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53Figure 41 Control wiring, Programmable Relay Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54Figure 42 Inverter overload data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59Figure 43 Bypass overload data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
TABLESTable 1 UPS input dry contacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 2 UPS control contacts with global maintenance bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 3 UPS control contacts to remote status panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 4 UPS control contacts with battery cabinet or module battery disconnect . . . . . . . . . . 11Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module
Communication Board in system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Table 6 RIB UV coil, aux. contacts from UPS RIB CB interface board to remote CB1 . . . . . . . . . 14Table 7 Remote IOB contacts from remote breaker to UPS IOB CB interface board . . . . . . . . . 15
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | iii
Table 8 Wire size, length for digital LBS connection of UPS Inter-Module Communication Boards16
Table 9 Programmable Relay Board pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22Table 10 Input Contact Isolator Board pre-assigned values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Table 11 Input Contact Isolator Board control wiring connections . . . . . . . . . . . . . . . . . . . . . . . . . . .25Table 12 Programmable Relay Board pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54Table 13 Liebert NXL UPS specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55Table 14 Current ratings—rectifier input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56Table 15 Current ratings—bypass input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57Table 16 Current ratings—output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57Table 17 Current ratings—battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57Table 18 Recommended conduit and cable sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58Table 19 Recommended torque values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Table 20 Recommended lug sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | iv
IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation of your Liebert® NXL™ UPS. Read this manual thoroughly, paying special attention to the sections that apply to your installation, before working with the UPS. Retain this manual for use by installing personnel.
WARNINGRisk of electrical shock. Can cause personal injury or death.This UPS has several circuits that are energized with high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS. Check for voltage with both AC and DC voltmeters before making contact.Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation. When performing maintenance with any part of the equipment under power, service personnel and test equipment should be standing on rubber mats.In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or those approved for use in fighting electrical fires.Extreme caution is required when performing installation and maintenance.Special safety precautions are required for procedures involving handling, installation and maintenance of the UPS system. Observe all safety precautions in this manual before handling or installing the UPS system. Observe all precautions in the Operation and Maintenance Manual, SL-25425, before as well as during performance of all maintenance procedures. Observe all DC safety precautions before working on or near the DC system.
WARNINGRisk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.Exercise extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel. The UPS module weight is up to 13,800lb. (6260kg).
Locate center of gravity symbols and determine unit weight before handling each cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.Slots at the base of the module cabinets are intended for forklift use. Base slots will support the unit only if the forks are completely beneath the unit.Read all of the following instructions before attempting to move, lift, or remove packaging from unit, or prepare unit for installation.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 1
NOTICEThis unit complies with the limits for a Class A digital device, pursuant to Part 15 Subpart J of the FCC rules. These limits provide reasonable protection against harmful interference in a commercial environment. This unit generates, uses and radiates radio frequency energy and, if not installed and used in accordance with this instruction manual, may cause harmful interference to radio communications. Operation of this unit in a residential area may cause harmful interference that the user must correct at his own expense.
WARNINGRisk of electrical shock and fire. Can cause equipment damage, personal injury or death.Under typical operation and with all UPS doors closed, only normal safety precautions are necessary. The area around the UPS system should be kept free of puddles of water, excess moisture and debris.Only test equipment designed for troubleshooting should be used. This is particularly true for oscilloscopes. Always check with an AC and DC voltmeter to ensure safety before making contact or using tools. Even when the power is turned Off, dangerously high potential electric charges may exist at the capacitor banks and at the DC connections.All wiring must be installed by a properly trained and qualified electrician. All power and control wiring must comply with all applicable national, state and local codes.One person should never work alone, even if all power is disconnected from the equipment. A second person should be standing by to assist and to summon help in case of an accident.
NOTEMaterials sold hereunder cannot be used in the patient vicinity (e.g., use where UL, cUL or IEC 60601-1 is required). Medical applications such as invasive procedures and electrical life support equipment are subject to additional terms and conditions.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 2
1.0 MECHANICAL INSTALLATION1.1 IntroductionThis section describes the requirements that must be taken into account when planning the positioning and cabling of the Liebert® NXL™ uninterruptible power supply and related equipment.This chapter is a guide to general procedures and practices that should be observed by the installing personnel. The particular conditions of each site will determine the applicability of such procedures.
NOTICEThree-phase input supply required.The standard Liebert® NXL™ UPS is suitable for connection to three-phase, four-wire (+ Earth) TN-C, TN-S, IT-G or IT-IG, or three-phase, three-wire plus ground IT-UG.If the unit is used with an IT power system, a 4-pole disconnect device must be included as part of building installation.
NOTICEDo not apply electrical power to the UPS equipment before the arrival of the commissioning engineer.
1.2 Preliminary ChecksBefore installing the UPS, please carry out the following preliminary checks:
• Visually examine the UPS equipment for transit damage, both internally and externally. Report any damage to the shipper immediately.
• Verify that the correct equipment is being installed. The equipment supplied has an identification tag on the interior doors reporting the type, size and main calibration parameters of the UPS.
• Verify that the UPS room satisfies the environmental conditions stipulated in the equipment specification, paying particular attention to the ambient temperature and air exchange system.
WARNINGRisk of electrical shock. Can cause injury or death.Special care must be taken when working with the batteries associated with this equipment. When they are connected together, the battery terminal voltage will exceed 400VDC and is potentially lethal.
NOTEAll equipment not referred to in this manual is shipped with details of its own mechanical and electrical installation.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 3
1.3 Environmental Considerations1.3.1 UPS RoomThe UPS module is intended for indoor installation and should be located in a cool, dry, clean-air environment with adequate ventilation to keep the ambient temperature within the specified operating range (see Environmental Parameters in Table 13).The Liebert® NXL™ UPS is cooled with the aid of internal fans. To permit air to enter and exit and prevent overheating or malfunctioning, do not cover the ventilation openings.
The Liebert® NXL™ UPS is equipped with air filters located behind the front doors. A schedule for inspection of the air filters is required. The period between inspections will depend upon environmental conditions.When bottom entry is used, the conduit plate must be installed.
1.3.2 Storing the UPS and Batteries for Delayed InstallationIf the Liebert® NXL™ system will not be installed immediately, it must be stored indoors in a clean, dry and cool location (see Environmental Parameters in Table 13). If the UPS includes batteries, either internally or in a battery cabinet, the batteries’ requirements will dictate the storage conditions. Batteries should be unpacked, installed and charged as soon as possible after delivery.
NOTICERisk of failure to properly charge batteries. Can cause permanent damage to batteries and void the warranty.
Batteries will self-discharge during storage. Batteries must be recharged as recommended by the battery manufacturer.
A notice of “Charge Before Date” is affixed to each unit that has batteries inside. The “Charge Before Date” is calculated based on the batteries being stored at 77°F (25°C). Storage at a higher temperature will increase the rate of self-discharge, requiring earlier recharge. Consult the battery manufacturer on how to determine when the batteries need to be recharged.
1.4 PositioningThe cabinet is structurally designed to handle lifting from the base.Access to the power terminals, auxiliary terminal blocks and power switches is from the front.The door can be opened to give access to the power connection bars, auxiliary terminal blocks and power isolators. Front door can be opened at 180 degrees, and interior doors can be removed for more flexibility in installations.
NOTETo ensure proper airflow, the unit must be installed only on a solid surface made of a noncombustible material, such as concrete.
NOTEThe UPS is suitable for mounting on concrete or other non-combustible surface only.
NOTEThe UPS must be placed a solid surface. There must be no openings in the surface except those required for conduit landing areas. All provided kick plates must be installed.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 4
1.4.1 Moving the CabinetsThe route to be travelled between the point of arrival and the unit’s position must be planned to make sure that all passages are wide enough for the unit and that floors are capable of supporting its weight (for instance, check that doorways, lifts, ramps, etc. are adequate and that there are no impassable corners or changes in the level of corridors).Ensure that the UPS weight is within the designated surface weight loading (kg/cm2) of any handling equipment. For weight details, see Table 13.The UPS can be handled with a forklift or similar equipment. Ensure any lifting equipment used in moving the UPS cabinet has sufficient lifting capacity. When moving the unit by forklift, care must be taken to protect the panels. Do not exceed a 15-degree tilt with the forklift. Bottom structure will support the unit only if the forks are completely beneath the unit.Handling with straps is not authorized.
1.4.2 ClearancesThe Liebert® NXL™ has no ventilation grilles at either side or at the rear of the UPS. Clearance around the front of the equipment should be sufficient to enable free passage of personnel with the doors fully opened. It is important to leave a distance of 24in (610mm) between the top of the UPS and any overhead obstacles to permit adequate circulation of air coming out of the unit.
1.4.3 Raised-Floor InstallationsIf the equipment is to be located on a raised floor, it should be mounted on a pedestal suitably designed to accept the equipment point loading. Refer to the base view to design this pedestal. The top of the pedestal must be solid.
1.4.4 Kick Plate InstallationKick plates must be installed. If the unit is to be installed in a position that does not permit access to rear kick plates, then the kick plates must be installed before the unit is placed in its final position.
WARNINGRisk of heavy unit falling over. Improper handling can cause equipment damage, injury or death.Because the weight distribution in the cabinet is uneven, use extreme care while handling and transporting. Take extreme care when handling UPS cabinets to avoid equipment damage or injury to personnel.The UPS module weight is up to 13,800lb. (6260kg).Locate center of gravity symbols and determine unit weight before handling each cabinet. Test lift and balance the cabinets before transporting. Maintain minimum tilt from vertical at all times.
NOTEThe UPS must be placed on a solid surface. There must be no openings in the surface except those required for conduit landing areas. All provided kick plates must be installed.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 5
1.4.5 Special Considerations for 1+N Parallel SystemsConsider the grounding configuration of your system before finalizing module placement See 2.6 - Configuring Neutral and Ground Connections.Vertiv recommends matching the impedance in the bypass path of paralleled systems as closely as possible.The impedance mismatch can be minimized by controlling the wiring length of each unit. The design and the layout of the UPS system and associated panels and cabling should be examined closely to ensure that cable lengths and impedances are closely matched. The Liebert® 1+N UPS module is supplied with a sharing reactor to minimize the impact of cable impedance mismatch.The cabling impedance must be carefully controlled to ensure good bypass current sharing.For Liebert® NXL™ Systems, the cabling impedances must be within 10% from maximum to minimum. If the cabling impedances need to be greater than 10%, contact your Vertiv representative to calculate whether the system will result in an overload condition when operating on bypass.When bringing the 1+N system on-line for the first time or after removing one unit, Vertiv recommends checking the bypass current mismatch. To check the bypass current mismatch:
1. Place a load on the bypass of each UPS module.2. View the output current of each unit.The accuracy of the currents displayed on the UPS module is sufficient for this check. If the mismatch is greater than 10%, the bypass impedances must be balanced or the load must be limited to less than the maximum rating.
1.5 System CompositionA UPS system can comprise a number of equipment cabinets, depending on the individual system design requirements: e.g., UPS cabinet, battery cabinet, maintenance bypass cabinet. In general, all the cabinets used in a particular installation are of the same height. Refer to the drawings provided in 4.0 - INSTALLATION DRAWINGS for the positioning of the cabinets as shown in Figure 1.
1.6 Cable EntryCables can enter the UPS cabinet from bottom or top into the Input/Output (I/O) section of the unit; see the figures in 4.0 - INSTALLATION DRAWINGS.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 6
Figure 1 Cabinet arrangement—Liebert® NXL™, battery cabinets, maintenance bypass cabinet
Liebert®
NXL™
UPS
Liebert®
NXL™
UPS
Maintenance BypassCabinet
(Matching)
BatteryCabinet
(Matching)
Liebert®
NXL™
UPS
Maintenance BypassCabinet
(Matching)
AdditionalBattery
Cabinet(s)(Matching)
BatteryCabinet
(Matching)
Liebert®
NXL™
UPS
AdditionalBattery
Cabinet(s)(Matching)
BatteryCabinet
(Matching)
Liebert®
NXL™
UPS
AdditionalBattery
Cabinet(s)(Matching)
The side panels and hangers must be removed before the cabinets can be bolted together.
Note: Battery cabinets can be bolted to the right of the UPS. However, the cabling must be
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 7
2.0 UPS ELECTRICAL INSTALLATIONThis chapter provides guidelines for qualified installers who must have knowledge of local wiring practices pertaining to the equipment to be installed.
2.1 External Protective DevicesFor safety, it is necessary to install circuit breakers in the input AC supply and external battery system. Given that every installation has its own characteristics, this section provides guidelines for qualified installation personnel with knowledge of operating practices, regulatory standards and the equipment to be installed.External overcurrent protection must be provided. See Table 13 - Liebert® NXL™ UPS specifications for overload capacity.
2.2 Power CablesThe UPS requires both power and control cabling. All control cables, whether shielded or not, should be run separately from the power cables in metal conduits or metal ducts that are electrically bonded to the metalwork of the cabinets to which they are connected.The cable design must comply with the voltages and currents in Tables 14 through17, follow local wiring practices and take into consideration the environmental conditions (temperature and physical support media), room temperature and conditions of installation of the cable and system’s overload capacity (see 5.0 - SPECIFICATIONS).
When sizing battery cables, a maximum volt drop of 2VDC is permissible at the current ratings given in Table 17.
WARNINGRisk of electrical shock. Can cause injury or death.The UPS contains high DC as well as AC voltages. Check for voltage with both AC and DC voltmeters before working within the UPS.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves, shoes and glasses should be involved in installing the UPS or preparing the UPS for installation.
WARNINGRisk of electrical shock. Can cause injury or death.Before cabling the UPS, ensure that you are aware of the location and operation of the external isolators that connect the UPS input/bypass supply to the power distribution panel.Check that these supplies are electrically isolated, and post any necessary warning signs to prevent their inadvertent operation.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 8
The following are guidelines only and are superseded by local regulations and codes of practice where applicable:
• Take special care when determining the size of the neutral cable (grounded conductor), because current circulating on the neutral cable may be greater than nominal current in the case of non-linear loads. Refer to the values in Table 13.
• The grounding conductor should be sized according to the fault rating, cable lengths, type of protection, etc. The grounding cable connecting the UPS to the main ground system must follow the most direct route possible.
• Consideration should be given to the use of paralleled smaller cables for heavy currents, as this can ease installation considerably.
• AC and DC cables must be run in conduits according to local codes, national codes and standard best practices. This will prevent creation of excess EMI fields.
2.3 Sizing the Input Breaker feeding a Liebert® NXL™ UPSThe rectifier nominal input current value (Table 14) is based on providing enough power to operate the inverter at full rated load when the input voltage is nominal. The published rectifier maximum input current value is based on the maximum input current limit setting of 125%.The recommended input breaker ampacity is based on the NEC calculation for a branch circuit with the current limit set at the maximum value. The calculation for a 100% rated breaker is 100% of the nominal current (continuous) plus 100% of the difference between the nominal and the maximum currents (noncontinuous). The rectifier input current limit can be adjusted from 25% to 125% of the nominal value. This setting is only accessible to a factory-trained service engineer. The effect of changing this setting is similar to that of changing the setting of the trip unit on a solid state circuit breaker. With a lower current limit setting the calculation for the branch circuit will result in a lower value.The input current limit should not be set less than 105% of the current needed to support the inverter at full load for normal operation. This results in sufficient power to recharge the battery in a reasonable time and to operate over the published input voltage range.2.3.1 Power Cable Connection ProcedureThe rectifier input, bypass, output and battery power cables (all require lug-type terminations) are connected to busbars in the I/O sections (refer to 4.0 - INSTALLATION DRAWINGS).Equipment GroundThe equipment ground busbar is in the I/O sections as shown in (refer to 4.0 - INSTALLATION DRAWINGS). The grounding conductor must be connected to the ground busbar and bonded to each cabinet in the system.All cabinets and cabling should be grounded in accordance with local regulations.
NOTEProper grounding reduces problems in systems caused by electromagnetic interference.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 9
Once the equipment has been positioned and secured, connect the power cables as described below (refer to the appropriate cable connection drawing in 4.0 - INSTALLATION DRAWINGS):
1. Verify that the UPS equipment is isolated from its external power source and all the UPS power isolators are open. Check that these supplies are electrically isolated and post any necessary warning signs to prevent their inadvertent operation.
2. Open exterior and interior panels on the front of the I/O sections.3. Connect the ground and any necessary main bonding jumper to the equipment ground busbar located in
the I/O sections.4. Make power connections and tighten the connections to the proper torque.Ensure correct phase rotation.
5. For control connection details, see 2.4 - Control Cable and Communication.
6. Close and secure the interior and exterior doors.7. Attach the cabinet EMI plates to the top of the UPS at each shipping split (625kVA or 750kVA only). See
Figure 2.8. Attach the kick plates and filters to the bottom of the unit. See Figure 3.
Figure 2 Cabinet EMI plates - 625kVA and 750kVA only
WARNINGFailure to follow adequate grounding procedures can result in electric shock hazard to personnel, or the risk of fire, should a ground fault occur.All operations described in this section must be performed by properly trained and qualified electricians or technical personnel. If any difficulties are encountered, contact Vertiv. See the back page of this manual for contact information.The grounding and neutral bonding arrangement must be in accordance with local and national codes of practice.
WARNINGRisk of electrical shock. Can cause injury or death.If the load equipment will not be ready to accept power on the arrival of the commissioning engineer, ensure that the system output cables are safely isolated at their termination.
WARNINGRisk of electrical shock. Can cause injury or death.When connecting the cables between the battery extremities to the circuit breaker, always connect the circuit breaker end of the cable first.
NOTE If fault bracing brackets were removed during installation, they MUST be replaced.
Note location
of larger cutouts.
Orient ground plate
as shown.
A
Mounting
Hardware
(Supplied)
Installed at Each Shipping Split Detail A
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 10
Figure 3 Kick plate and filter locations
Figure 4 500-kVA Models Low-voltage cable installation—top entry
NOTEKick plates must be installed. If the unit is to be installed in a position that does not permit access to rear kick plates, then the kick plates must be installed before the unit is placed in its final position.
Install Factory-Supplied
Bolt, Lockwasher and
Washer, 4 Places,
Front Side
Install Factory-Supplied
Bolt, Lockwasher and
Washer, 4 Places,
Rear Side
Install Factory-Supplied
Bolt, Lockwasher and
Washer, 2 Places
Each Side
Install Factory-Supplied
Bolt, Lockwasher and
Washer, 2 Places,
Each Side
FRONT
Kickplate
Kickplate
REAR
Kickplate
Kickplate
Kickplate
D
DETAIL D
E
DETAIL E
G
DETAIL G
F
Cable Entry
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 11
Figure 5 625 - 750-kVA Models Low-voltage cable installation—top entry
2.4 Control Cable and CommunicationBased on your site’s specific needs, the UPS may require auxiliary connections to manage the battery system (external battery circuit breaker), communicate with a personal computer or provide alarm signaling to external devices, or for Remote Emergency Power Off (REPO). The External Interface Board, arranged for this purpose, is next to the option box in the Rectifier section (refer to 4.0 - INSTALLATION DRAWINGS). The contacts are rated for 250VAC @ 2A.Figure 6 External Interface Board connections layout
Low-voltage cables can be install through the top of each unit. The entry conduit landing plate is shipped inverted.
To install, remove conduit plate, flip and reinstall. Removal of side plate is for access to pull wires.
REMOVE PLATES FLIP PLATES INSTALL
P66C P99C
TB0823
EPOSTATUS
TB0829
EXTERNALCAN
TB1154B TB1154A
TB0825
TB0824
TB0826TB0820 TB0818
TB0817
TB0819
TB0816
TB0830
TB035TB0821
P0801
TB0811
TB0810
TB0813
TB0812
TB0815
P0832P0831
P0808
OPTPS
INT BATTCAN
EXT BATT CAN
REPO
J4
REPOFORM C
LBS VOLTAGE
EXTERNALCAN MOB
MIB
RIB
MBB
BIB
KEY STATUS
INV CNTRLN
RECT CNTL
BYP CNTL
ON GEN
ACT FILTSTATUS
BATT GNDFLT
ACT FILTCNTL
MAINT BYPENABLE
AUX SPARETEMP
J5
BATT MTR OP
TB1156
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 12
2.4.1 Dry Contacts
NOTEIf connection to more than one module is required, use a separate, isolated contact for each module.
Table 1 UPS input dry contacts
Item
Terminal
BlockPin
Connects to(Description of External Item)
Wire Size/Max Length
Remote EPOInput Form C
TB0824
1 REPO Switch, normally open contact
14AWG/500ft.(150m)
2 REPO Switch, common contact
3REPO Switch, normally closed contact, set jumperJ5: 1-2 to enable, 2-3 to disable
On GeneratorInput Form C TB0816
1 On Generator switch, closed = On Generator
2 On Generator switch, common
3 On Generator switch, closed = Not On Generator
Table 2 UPS control contacts with battery cabinet or module battery disconnect
Item
Terminal
BlockPin
Connects to(Description of External Item)
Wire Size/Max Length
CAN Bus and24V Power Supply
TB1154A
1 Battery Interface Board TB1154-118 AWG1000ft.(300m)
2 Battery Interface Board TB1154-2
3 Battery Interface Board TB1154-3
4 Battery Interface Board TB1154-4
Table 3 UPS control contacts with global maintenance bypass
Item
Terminal
BlockPin
Connects to(Description of External Item)
Wire Size/Max
Length
MaintenanceIsolation Breaker (MIB) Form C1
TB0811
1 CB aux. contact, closed = CB is closed 14AWG/500ft.
(150m)2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
Maintenance BypassBreaker (MBB) Form C1
TB0813
1 CB aux. contact, closed = CB is closed 14AWG/500ft.
(150m)2 CB aux. contact, common
3 CB aux. contact, closed = CB is open
Maintenance BypassEnable Form C1
TB0821
1 Maintenance Bypass Cabinet,closed = load not on inverter 14AWG/500
ft.(150m)
2 Maintenance Bypass Cabinet, common
3 Maintenance Bypass Cabinet, closed = load on inverter
Remote EPO Input1 TB0825
1 REPO Switch, normally open contact 14AWG/500ft.
(150m)2 REPO Switch, common contact
Key Status InputForm C1,3
TB0820
1 Key status switch, closed = key removed 14AWG/500ft.
(150m)2 Key status switch, common
3 Key status switch, closed = key inserted
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 13
Module Output Breaker(MOB) Form C2
TB0815
1 CB aux. contact, closed = CB is closed 14AWG/500ft.
(150m)2 CB aux. contact, common
3 CB aux. contact, closed = CB is open1. For 1+N systems with a maintenance Bypass, these auxiliary contacts must be run to each module from an
isolated source.2. For 1+N systems, these breaker Aux contacts go to the UPS that they are associated with.3. Key Status Input can be either Form-C, N.O. or N.C. contact
Table 3 UPS control contacts with global maintenance bypass (continued)
Item
Terminal
BlockPin
Connects to(Description of External Item)
Wire Size/Max
Length
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 14
2.4.2 Multi-Module CommunicationParalleling cables that connect the module to the system are connected to terminals P3101 and P3103 on the Inter-Module Communication (IMC) board (refer to 4.0 - INSTALLATION DRAWINGS).
Table 4 UPS control contacts to remote status panel
ItemTerminal
Block PinConnects to
(Description of External Item)Wire Size/
Max Length
CAN Bus and 24VPower Supply TB0829
1 Remote Status Panel TB-2
18AWG/1000ft.(300m)
2 Remote Status Panel TB-13 Remote Status Panel TB-34 Remote Status Panel TB-4
Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module Communication Board in system
Terminal DesignationSignal Name
Wire Size/ Max LengthFrom To
Primary ConnectionsP3101-1 P3101-1 Share CAN +24V
1000ft.(300m)
P3101-2 P3101-2 Share CAN commonP3101-3 P3101-3 System CAN +24VP3101-4 P3101-4 System CAN commonP3101-5 P3101-5 SER synch CAN+24VP3101-6 P3101-6 SER synch CAN commonP3101-7 P3101-7 Ground - Drain Wire
P3101-14 P3101-14 GroundP3101-8 P3101-8 PWM synch CAN +24VP3101-9 P3101-9 PWM synch CAN commonP3101-10 P3101-10 MMS synch CAN +24VP3101-11 P3101-11 MMS synch CAN common
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 15
Figure 7 Inter-Module Communication Board wiring diagram—Multi-modules
Redundant ConnectionsP3103-1 P3103-1 Redundant share CAN +24V
1000ft.(300m)
P3103-2 P3103-2 Redundant share CAN commonP3103-3 P3103-3 Redundant system CAN +24VP3103-4 P3103-4 Redundant system CAN commonP3103-5 P3103-5 Redundant SER synch CAN +24VP3103-6 P3103-6 Redundant SER synch CAN commonP3103-7 P3103-7 Ground - Drain Wire
P3103-14 P3103-14 GroundP3103-8 P3103-8 Redundant PWM synch CAN +24VP3103-9 P3103-9 Redundant PWM synch CAN commonP3103-10 P3103-10 Redundant MMS synch CAN +24VP3103-11 P3103-11 Redundant MMS synch CAN common
1. Belden 810x or Belden 89901 cables are the only approved cables.2. Belden 89901 cable can be used for underground installations.3. If using multiple parallel cables for each run, all cables must be run in the same conduit.4. Each cable group should be run in a separate grounded conduit to ensure redundancy.5. The maximum lengths must include all the parallel cables from the first module to the last module. The primary and
redundant cable lengths can be counted separately.6. The ground pins on the Inter-Module Communication Board (Pins 7 and 14) are connected together on the board. If using
cable with only one (1) drain wire, then connect the ground (drain wire) to Pin 7.7. Care must be taken so drain wire does not touch any other component in module.8. Attach control wires to side of control door where Inter-Module Board (IMC) is attached. Do not run wires across IMC board.
Table 5 Parallel from UPS module Inter-Module Communication Board to other Inter-Module Communication Board in system (continued)
Terminal DesignationSignal Name
Wire Size/ Max LengthFrom To
UPS 1 UPS 2 UPS 3
P3103
P3101
P3103
P3101
P3103
P3101
IMC02-806730-xx
IMC02-806730-xx
IMC02-806730-xx
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 16
2.4.3 Remote Input Breaker (RIB)For systems that use Remote Input Breakers (RIB), the controls for the Aux contacts, UVR, Motor Operator (optional) and voltage sense will go between the Remote breaker and the UPS Input I/O section. See Figure 8.
Figure 8 Remote Input Breaker diagram
A
B
C
E
RIB10A 10A 10A
IN_LINE_A
IN_LINE_B
IN_LINE_C
INPUT EMI
FILTER
IN_LOAD_A
IN_LOAD_B
IN_LOAD_C
A
B
C
A
B
C
LINE LOADV_IN_R_A
V_IN_R_B
V_IN_R_C
4 CB1_COIL_RTN
3_CB1_NO (CB CLOSED )
2_CB1_NC (CB OPEN )
5 CB1_COIL
1_CB1_COM
Inside UPS Cabinet
RIB
UVR Coil
(48VDC)
RIB Status
Contacts
120-240VAC
Close
RIB
RCB1ElectricalOperator
120-240VAC
(supplied by
swichgear vendor)
5_MTR_OP_CLOSE
2_MTR_OP_ENABLE
Circuit Breaker
Interface Board
02-806711-01
Inside Switchgear
To Customer
Input
Terminals
12
12
12
RIB-1
1
1Fuses should be 10A class CC or J type time delay
fuse2
Electrical operator power provided by switchgear
vendor and shall be powered from line side of RIB
TB1
TB1-1
TB1-2
TB1-3
2
TB1101
TB1102
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 17
RIB must be Listed UL 489 (Molded Case Circuit Breaker) or UL 1066 (Low Voltage AC Power Circuit Breaker) that are required to be used in UL-listed switchgear or switchboards. The circuit breaker must have a short-time rating not exceeding 480V at 150K Amperes, for 5 cycles.See Table 14 for required current ratings.
2.4.4 Inverter Output Breaker (IOB)For systems that use Inverter Output Breakers (IOB), the controls for the Aux contacts, UVR, Motor Operator (optional) and voltage sense will go between the Remote breaker and the UPS Output I/O section. See Figure 9.IOB must be Listed UL 489 (Molded Case Circuit Breaker) or UL 1066 (Low Voltage AC Power Circuit Breaker) that are required to be used in UL-listed switchgear or switchboards. The circuit breaker must have a short-time rating not exceeding 480 Volts at 150K Amperes, for 5 cycles.
Table 6 RIB UV coil, aux. contacts from UPS RIB CB interface board to remote CB1Terminal Designation
Signal NameWire Size/
Max LengthFrom To
Remote Breaker Contacts
TB1101-1 RIB aux. common
#14AWG/500ft. (150m)
TB1101-2 RIB aux. N.C. (closed = CB is open)
TB1101-3 RIB aux. N.O. (closed = CB is closed)
TB1101-4 RIB trip coil (-)
TB1101-5 RIB trip coil (+)
Remote RIB motor operator control contacts from remote breaker to UPS RIB CB interface board (optional)
Remote Breaker MotorOperator Contacts
TB1102-2 AC line #14AWG/500ft. (150m)TB1102-5 Motor operator close
Remote RIB voltage sense from remote breaker to UPS
Remote Breaker Voltage Sense
TB1-1 Voltage sense PH A#14AWG/
500ft. (150m)TB1-2 Voltage sense PH B
TB1-3 Voltage sense PH C
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 18
Figure 9 Remote Output Breaker diagram
See Table 15 for required current ratings.Table 7 Remote IOB contacts from remote breaker to UPS IOB CB interface board
Terminal DesignationSignal Name
Wire Size/ Max LengthFrom To
Remote Breaker Contacts
TB1101-1 IOB aux. common
#14AWG/500ft. (300m)
TB1101-2 IOB aux. N.C. (closed = CB is open)TB1101-3 IOB aux. N.O. (closed = CB is closed)TB1101-4 IOB trip coil (-)TB1101-5 IOB trip coil (+)
Remote IOB contacts from remote breaker to UPS IOB CB interface boardRemote Breaker Motor
Operator ContactsTB1102-2 AC line #14AWG/
500ft. (300m)TB1102-5 Motor operator closeRemote IOB contacts from remote breaker to UPS IOB CB interface board
Remote Breaker Voltage Sense
TB1-1 Voltage sense PH A#14AWG/
500ft. (300m)TB1-2 Voltage sense PH BTB1-3 Voltage sense PH C
A
B
C
E
IOB5A 5A 5A
OUT_LINE_A
OUT_LINE_B
OUT_LINE_C
OUTPUT EMI FILTER
OUT_LOAD_A
OUT_LOAD_B
OUT_LOAD_C
A
B
C
A
B
C
LINE LOADV_CB_A
V_CB_B
V_CB_C
TB1101
TB1102
4 CB2_COIL_RTN
3_CB2_NO (CB CLOSED )
2_CB2_NC (CB OPEN )
5 CB2_COIL
1_CB2_COM
Inside UPS Cabinet
IOB UVR Coil
(48VDC)
Circuit Breaker InterfaceBoard
02-806711 -01
Inside Switchgear
To UPSOutput Customer
Connections
12
12
12
IOB-1
N
1
1
Fuses should be 5A class CC or J type time delay fuse
OUT_LOAD_NOUT_LINE_N
N
2Electrical operator power provided by switchgear vendor and shall be powered from UPS side of IOB
N
120 -240 Vac
Close
IOB-xIOB
ElectricalOperator
120 -240 Vac(supplied by
switchgear vendor )
5_MTR_OP_CLOSE
2_MTR_OP_ENABLE
TB2TB2-1
TB2-2
TB2-3
TB2-4
2
IOB Status Contacts
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 19
2.5 Digital LBSThe Load Bus Sync interface enables independent UPS units to remain in sync when operating on battery or when supplied by unsynchronized input sources.Digital LBS cables that connect the module to the system are connected to terminals P3108 and P3109 on the Inter-Module Communication (IMC) board. See Figure 10.
Figure 10 Inter-Module Communication Board wiring diagram—Digital LBS
Table 8 Wire size, length for digital LBS connection of UPS Inter-Module Communication BoardsTerminal Designation
Signal NameWire Size/
Max LengthFrom ToDigital LBS from UPS Inter-Module Communication Board to other UPS Inter-Module Communication BoardP3108-1 P3108-1 LBS SYNCH CANH
3000ft(900m)P3108-2 P3108-2 LBS SYNCH CANL
P3108-3 P3108-3 GROUND - DRAIN WIRERedundant Digital LBS from UPS Inter-Module Communication Board to Other UPS Inter-Module Communication BoardP3109-1 P3109-1 REDUNDANT LBS SYNCH CANH
3000ft(900m)P3109-2 P3109-2 REDUNDANT LBS SYNCH CANL
P3109-3 P3109-3 GROUND - DRAIN WIRE1. Belden 810x or Belden 89901 cables are the only approved cables2. Each cable group should be run in a separate, grounded conduit to ensure redundancy.3. The maximum lengths must include all the LBS cables from the first module to the last module.4. The primary and redundant cable lengths can be counted separately.5. Belden 89901 cable can be used for underground installations.6. Attach the control wire to the side of control door where the Inter-Module Board (IMC) is attached. Do not run the wire across
IMC board.
UPS 1 UPS 2 UPS 3
P3108
P3109
P3108
P3109
P3108
P3109
IMC02-806730-xx
IMC02-806730-xx
IMC02-806730-xx
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 20
2.6 Configuring Neutral and Ground ConnectionsImproper grounding is the largest single cause of UPS installation and startup problems. Grounding techniques vary significantly from site to site, depending on several factors. Proper grounding should be based on NEC Section 250, but safe and proper equipment operation requires further enhancements. The following pages detail recommendations for grounding various system configurations to ensure optimal UPS system performance.
2.6.1 Four-Wire Input connectionsThe UPS module bypass input is connected to a solidly grounded source. In this configuration, the UPS module is not considered a separately derived source. The UPS module output neutral is solidly connected to the bypass source neutral, which is bonded to the grounding conductor at the source equipment.
2.6.2 Three-Wire Input connectionsThis configuration must NOT be used when single-phase loads are directly connected to the UPS. The UPS output is considered a separately derived source. The UPS module neutral is bonded to the UPS ground and connected to a local grounding electrode in accordance with NEC 250-26. Please note that whenever the UPS module transfers to or from bypass, two AC sources (UPS output and bypass) are briefly connected together and circulating current must flow. In this configuration, the current flows through the ground path, possibly tripping ground fault interrupters (GFI’s) and distorting the output voltage waveform. Proper adjustment of ground fault interrupters is necessary to avoid unwanted tripping. The time delay should be set to at least 0.2 seconds to prevent tripping when the UPS performs a transfer or retransfer.
NOTICERisk of improperly set ground fault interrupters. Can cause equipment damage.Failure to set the ground fault interrupters properly could cause loss of power to the critical load.
NOTESome UPS modules are equipped with input isolation transformers. However, these transformers have no effect upon any system grounding considerations. These modules will be grounded exactly as shown in Figures 11 through14.
CAUTIONThe UPS ground lug must be solidly connected to the service entrance ground by an appropriately sized wire conductor per NEC Article 250. Each conduit or raceway containing phase conductors must also contain a ground wire, both for UPS input and output, which are solidly connected to the ground terminal at each termination point. Conduit-based grounding systems tend to degrade over time. Therefore, using conduit as a grounding conductor for UPS applications may degrade UPS performance and cause improper UPS operation.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 21
2.6.3 Preferred Grounding Configuration, Battery SystemsOpen-rack battery systems, depending on local code requirements and customer preference, are normally:
• Floating (ungrounded)OR• Center-tapped and floating
Battery cabinet systems must be connected as floating (ungrounded) systems.Center-tapped or grounded battery systems are not possible with battery cabinet systems.Whether the battery system is open-rack or cabinet, the metal rack parts or cabinet must be grounded to the UPS module ground bus.
2.6.4 Multi-Module SystemsFor both N+1 and 1+N systems, the neutrals of all UPS modules in the system must be connected together inside the switchgear or parallel cabinet. The neutral conductors must be rated for 20% of phase conductor current minimum. Site and load conditions will determine if larger neutrals are required. For multi-module systems using a 3-wire bypass, the Neutral-Ground bond must be made at the common neutral connection point in the switchgear or parallel cabinet.
2.6.5 High Resistance Ground SystemsThe Liebert® NXL™ is compatible with high resistance ground systems. See your local Vertiv™ representative for details.
2.7 Grounding Diagrams, Single- and Multi-Module SystemsFigure 11 Grounding diagram, three-wire single-module system
UPSSource
G
N
BPSS
N
G
To
conn
ect e
qui
pmen
t
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 22
Figure 12 Grounding diagram, four-wire single-module system
Figure 13 Grounding diagram, three-wire multi-module system
UPSSource
G
NN
G
To
conn
ect
equi
pm
ent
BPSS
SwitchgearUPS #1
Source
G
N
N
G
UPS #2
N
G
UPS #3
N
G
To
conn
ect e
quip
men
t
N
G
Grounding for 1+N systems is wired
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 23
Figure 14 Grounding diagram, four-wire multi-module system
Switchgear
UPS #1
Source
G
N
BPSS
N
G
UPS #2
BPSS
N
G
UPS #3
BPSS
N
G
To
conn
ect e
quip
men
t
N
G
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 24
3.0 OPTIONAL EQUIPMENT
3.1 Single-Module System Options3.1.1 Matching Maintenance Bypass CabinetA matching Liebert® NXL™ Maintenance Bypass cabinet is available. See Maintenance Bypass Cabinet installation manual (SL-24532), available at Vertiv’s Web site: www.vertivco.com ) for details.
3.1.2 Battery Temperature SensorThe optional external battery temperature sensor kit, supplied separately from the battery circuit breaker, contains one probe and one temperature transport board.
3.1.3 Matching Liebert® NXL™ Battery CabinetThe optional matching Liebert® NXL™ Battery Cabinet can be used to obtain the desired autonomy time. The battery cabinets are designed to be either attached to the UPS or separate from the UPS (for details, see the Liebert® NXL™ Battery Cabinet installation manual, SL-25430, available at Vertiv’s Web site: www.vertivco.com ).
3.1.4 Matching Module Battery Disconnect—MBDThe optional Module Battery Disconnect (MBD) can be used as a battery disconnect between a battery system and the Liebert® NXL™ UPS (for details, see the Liebert® NXL™ Battery Cabinet installation manual, SL-24530, available at Vertiv’s Web site: www.vertivco.com ).
3.1.5 Load Bus SynchAn optional Load Bus Synch (LBS) system can be used to synchronize two Liebert® NXL™ UPS units or a Liebert® NXL™ UPS to a Liebert® Series 610™ UPS.
3.1.6 Remote Alarm Status PanelThe remote alarm status panel has LED alarm lights. An audible alarm sounds upon any alarm condition. The surface- or flush-mounted NEMA 1 enclosed panel indicates: Load on UPS, Load on Bypass, Battery Discharging, Low Battery Warning, Overload Warning, Ambient Overtemp Warning, UPS Alarm Condition, New Alarm Condition (For a Second UPS Alarm Condition).
3.2 Communication and Monitoring• Liebert® IntelliSlot™ Web Card - SNMP/HTTP Network Interface Card• Liebert® IntelliSlot™ 485 Web Card - Modbus, J-bus, IGM Net• Remote Monitoring Services IntelliSlot™ Card• RS485/422 Protocol Converter IntelliSlot™ Card• Alber® battery monitoring system• Programmable Relay Board• Input Contact Isolator Board
3.2.1 Alber® Monitoring SystemThe matching Liebert® NXL™ Battery Cabinet allows installing an optional Alber® Battery monitoring system in the cabinet. The Alber® Battery Monitoring by Liebert® continuously checks all critical battery parameters, such as cell voltage, overall string voltage, current and temperature. Automatic periodic tests of internal resistance of each battery will verify the battery’s operating integrity. Additional capabilities include automatic internal DC resistance tests and trend analysis, providing the ability to analyze performance and aid in troubleshooting.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 25
3.2.2 Programmable Relay BoardThe Programmable Relay Board (PRB) provides a means to trigger an external device when an event occurs in the Liebert® NXL™. Each PRB has eight channels. Each channel has Form-C dry contacts rated at 1A @ 30VDC or 125VAC @ 0.45A.Any alarm/event can be programmed to any channel or channels. Up to four events can be programmed to a relay. If multiple events are grouped to one relay, group the events logically to simplify troubleshooting when an event is triggered. The same alarm/event can be programmed to more than one channel. Up to two Programmable Relay Boards can be installed in the Liebert® NXL™ for a total of 16 channels. Programming is performed through the HMI touchscreen display.
Figure 15 Control wiring, Programmable Relay Board
NOTEUp to two PRB’s can be installed in the Liebert® NXL™.
Table 9 Programmable Relay Board pinoutTerminal
Block Channel Pin No. CommonNormally
ClosedNormally
Open
J71
CH1A 1-3 1 2 3B 4-6 4 5 6
CH2A 7-9 7 8 9B 10-12 10 11 12
CH3A 13-15 13 14 15
J72
B 1-3 1 2 3
CH4A 4-6 4 5 6B 7-9 7 8 9
CH5A 10-12 10 11 12B 13-15 13 14 15
TB3
CH6A 1-3 1 2 3B 4-6 4 5 6
CH7A 7-9 7 8 9B 10-12 10 11 12
CH8A 13-15 13 14 15
J74 B 1-3 1 2 3Note: Pin 16 not used on J71, J72, and J73.
1 2 3 6 7 8 94 105 111213141516
1 2 3 6 7 8 94 105 11 121314 1516
1 2 3 6 7 8 94 105 11121314 1516
1 2 3
J74
J71
J72
J73
1. Customer control wiring connection points are terminals 1 through 15. (Pin 16 not used on J71, J72, and J73.)
2. Programmable Relay Board option includes eight signal channels with two Form-C dry contacts per channel (see Table 12).
3. All control wiring (by others) must be run separate from power wiring. Control wiring runs should not be combined in the same conduit.
4. Contact ratings: 1A @ 30VDC or 125VAC @ 0.45A
5. Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 26
Configuring the Programmable Relay Board Settings1. Press Internal Option Settings from the Config menu.2. Press which Programmable Relay Board will be configured. The Programmable Relay Board dialog box is
displayed.3. Press the Relay channel4. Press up to four (4) events. Selected events will show up under Relay 1 Assignment.
5. Repeat Steps 3 and4 for each relay.6. Press SAVE to keep the settings.
Figure 16 Programmable relay board dialog box
• Assignment—0 to 4 event (default: 0)• Delay, sec—0 to 99.9 (default: 0)
NOTETo deselect an event, click on the event.
1 2 3 4 5 6 7 8
0.0Relay 1 Delay (sec)
Relay 1 Assignment
Programming Relay
Programming Relay Board #1
Auto Rexfer Failed
BFB Open
Batt CB1 Open
Batt CB2 Open
Batt CB3 Open
Save
BPSS Ovld Exceeded
BPSS Unable
Cancel
X?
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 27
3.2.3 Input Contact Isolator BoardThe Input Contact Isolator Board (ICI) provides a Liebert® NXL™ module interface for up to eight external user alarm or message inputs to be routed through the Liebert® NXL’s alarm network. The eight contacts are normally open dry contacts. When a contact closes, an event is triggered.
The Input Contact Isolator options are configured through the Input Contact Isolator dialog box, which is accessed from the Internal Option Settings under Config dialog box on the HMI touchscreen display. The Input Contact Isolator dialog box contains eight choices to match the eight channel input board. You can label each button to identify the event associated with the contact. When the dialog box is accessed, each button flashes to display the Input Contact Isolator number and the user entered label. This label also appears in the Display Panel when an event related to an Input Isolator Connector is triggered.The Input Contact Isolator dialog box allows you to:
• Label the input contact assignments for your setup.• Set the delay for an external event triggering an alarm.• Review the isolator contact assignments, once the labels are entered.
The delay allows setting the number of seconds that a condition must exist before it will trigger an alarm. To configure the Input Contact Isolator relays:
1. Press Internal Option Settings from the Config menu.2. Press which Input Contact Isolator is to be configured. The Input Contact Isolator dialog box is displayed.
Figure 17 Input contact isolator dialog box
NOTEUp to two ICI’s can be installed in a Liebert® NXL™.
Input Contact Isolator Board #1
Save Cancel
X?
Ch #
Ch #
Ch #
Ch #
Ch #
Ch #
Ch #
Ch #
Custom Pre-assigned Input Contact 11 Delay
Delay
Delay
Delay
Input Contact 12
Input Contact 13
Input Contact 14
Input Contact 15
Input Contact 16
Input Contact 17
Input Contact 18
Pre-assigned
Pre-assigned
Pre-assigned
Pre-assigned
Pre-assigned
Pre-assigned
Pre-assigned
Custom
Custom
Custom
Custom
Custom
Custom
Custom
0.0
0.0
0.0
0.0
Delay 0.0
Delay 0.0
Delay 0.0
Delay 0.0
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 28
• Assignment—Custom, Pre-assigned (default: “Input Contact” XY)• Delay, sec—0 to 99.9 (default: 0)• Message—Custom: 0-19 characters3. To assign labels for each channel:
a. Press Pre-assigned for default labels on Channels 1-6 (See Table 10)b. For Custom labels
1. Press Custom to unique labels. 2. Click on Input Contact XX button. A keyboard is displayed to allow naming alarms.3. Enter the name of the alarm set for that input. For example, a fan problem could be indicated by naming
the button FAN.4. Press OK on the keyboard to keep your label.
4. Press DELAY.a. A keypad is displayed prompting you for a delay time, in seconds, for a condition to exist
before the alarm is triggered.b. Enter the delay value. The range for the values are from 0 (zero) to 99.9 seconds.c. Press OK on the keypad to keep your setting. The value you entered is displayed in the field
adjacent to the corresponding input contact.5. Repeat Steps 3 and4 for each input contact.6. Press SAVE after you have configured all input contacts.Be sure to press Save even if you have accessed this dialog only to change a setting.7. This information is not saved if control power is removed.
Table 10 Input Contact Isolator Board pre-assigned valuesChannel Number
ICI #1Pre-Assigned Label
ICI #2Pre-Assigned Label
1 Reduced Rect ILimit Stop Battery Charge
2 Reduced Batt ILimit Stop Battery Charge
3 Stop Battery Charge Stop Battery Charge
4 Inhibit Rect Restrt Stop Battery Charge
5 Inhibit Byp Restrt Stop Battery Charge
6 Inhibit Inv Restrt Stop Battery Charge
7 Input Trap Filter Disconnect Inhibit IP Standby
8 Suspend ECO Mode —
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 29
Figure 18 Optional Input Contact Isolator Board
1 2 3 6 7 8 94 105 11 121314 1516
J51
No Customer Connection Table 11 Input Contact Isolator Board control wiring connections
Input Contact Pin No.
112
234
356
478
5910
61112
71314
815
1. Customer control wiring connection points are terminals 1 through 16 (see Table 11).
2. Customer provided normally open dry contacts for user alarm messages.
3. All control wiring (by others) must be run separate from power wiring. Control wiring runs should not be combined in the same conduit.
4. Signal voltage: 100mA @ 12VDC.5. Maximum cable length 500 ft. (152m) with #16AWG and flexible
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 30
4.0 INSTALLATION DRAWINGSFigure 19 Main components, 500kVA Liebert® NXL SMS and 1+N multi-module unit with static bypass
Option Box
(6 Slots)
Liebert®
IntelliSlot™
Housings
Main Input
Circuit Breaker
(CB1)
Module Output
Circuit Breaker
(CB2)
Back Feed Circuit
Breaker (BFB)
Input
Busbars
DOORS AND INNER SKINS REMOVED
FRONT DOORS REMOVED
Keylock or EMO
Button (Optional)
External Interface
Board
HMI Screen
Inter-Module
Communication
Board, Behind
HMI Screen
Bypass
BusbarsInput
Ground
Output
Ground
Output
Busbars
U40-5C-2000
Rev. 2
DC (-)
Input
DC (+)
Input
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 31
Figure 20 Outline drawing, Liebert® NXL™ 500kVA UPS SMS and 1+N multi-module unit with static bypass
Inverter Split (Part B)
LEFT SIDE VIEW FRONT VIEW
Rectifier Split (Part A)
RIGHT SIDE VIEW
.0
.0DETAIL B
SECTION A-ABOTTOM VIEW
AA
TOP VIEW
25.5"[647mm]
32.3"[820mm]
49.2" [1250mm] 62.4" [1585mm]
111.6" [2835mm]39.6"
[1005mm]
76.8" [1950mm]
35.7"[906mm]
14.9"[379mm]
69.8"[1773mm]
25.8"
[654mm]
10.8"[273mm]
96.8" [2458mm]
10.8"[274mm]
14.6"[370mm]
1.25"[31.9mm]
10.8" [275mm]
2.92" [74mm]
15.6"[396mm] 10.6
[269mm]
Rectifier / DC
Cable Entry
Control Cable
Entry/Exit Bypass/Output
Cable Entry/Exit
Cable
EntryBypass/Output
Cable Entry/Exit
Rectifier
Center
of Gravity
Inverter
Center
of Gravity
0.6" [15mm]Panel Width
Front-Most
Edge of Frame
Outer Edge
Corner Post
NOTES
1. All dimensions are in inches (mm).
2. 24" (610) minimum clearance above unit required for air exhaust
and maintenance.
3. Keep cabinet within 15 degrees of vertical.
4. Top and bottom cable entry available through removable access plates.
Remove, punch to suit conduit size and replace.
5. Unit bottom is structurally adequate for forklift handling.
6. All wiring is to be in accordance with national and local electrical codes.
7. Depth dimension includes front door and rear panel.
8. Width dimensions include side panels. Subtract 1.4" (35mm) when
removing both side panels.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 32
Figure 21 Input terminal details, Liebert® NXL™ 500kVA UPS, SMS and 1+N multi-module unit with static bypass
DUAL LUG
CONNECTION DETAIL
DO NOT DOUBLE STACK LUGS
(two lugs on same side of busbar).
This is to prevent the cables from
coming into contact with other bus bars.
Lugs
BusbarBolt
U40-5E-3200
Rev. 4
LEFT SIDE (PART A) LEFT FRONT (PART A)
GROUND BUS
DC INPUT
INPUT
PHASES
CBA
0
29.5"
(749mm)
42.4"
(1077mm)
45.6" (1158mm)
48.8" (1240mm)
54.6" (1387mm)
59.2" (1504mm)
DC INPUTS
GROUND
76.8"
(1950mm)
NOTES
1. Control wiring and power wiring must be run in separate conduits
2. All wiring is to be in accordance with national and local electrical codes.
3. See page 2 of 2, Drawing Number: U40-5E-3201.
DC (+)
Input
DC (-)
Input
INPUT PHASES
Ø 0.5"
(13mm)
Typical
Ø 0.5"
(13mm)
Typical
Ø 0.5"
(13mm)
Typical
1.75"
(44mm)
Typical
1.75"
(44mm)
Typical
1.75"
(44mm)
Typical
1.75" (44mm)
Typical1.75" (44mm)
Typical
1.75" (44mm)
Typical
3"
(76mm)
3"
(76mm)
3"
(76mm)
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 33
Figure 22 Output terminal details, Liebert® NXL™ 500kVA UPS, SMS and 1+N multi-module unit with static bypass
NOTES:
1.All dimensions are in inches (mm).
2. Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.
3. All wiring is to be in accordance with national and local electrical codes.
RIGHT FRONT (PART B) RIGHT SIDE (PART B)
Do not double-stack lugs (two lugs
on same side of busbar).
This is to prevent the cables from
coming into contact with other busbars.
CB
1-3
CB
1-3
Lugs
BusbarBolt
DUAL LUG
CONNECTION DETAIL
1.75(44)TYP
Ø0.50(13) TYP
2.36(60)TYP
2.36(60)TYP
OUTPUT
GROUND
.0( 0)
31.1(790)
44.7(1135)
Output &
Bypass &Neutral
Neutral
1.75(44)TYP
Ø0.50(13) TYP
2.56(65)TYP
2.56(65)TYP
OUTPUT, BYPASS & NEUTRAL
BusNeutral
A B C N
A B C N
FRONT
Phases &Bypass
BusNeutralPhases &Output
8.7(220)
13.8(350)
59.2(1504) Ground
Output
76.8(1950)
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 34
Figure 23 Base drawing, Liebert® NXL™ 500kVA UPS, SMS and 1+N multi-module unit with static bypass
BRACKET MOUNTING LOCATIONS(M10 HEXSERTS)
FOOTPRINT SPACING
LIFT CLEARANCE
SHIPPING SPLIT
RECTIFIER SECTION(PART A)
NOTES:
1. All dimensions are in inches (mm).
2. Unit bottom is structurally adequate for
forklift handling.
INVERTER SECTION(PART B)
BOTTOM CABLE
ENTRY PANELSPILLARS REMOVED
FOR CLARITY
RECTIFIER SECTION(PART A)
INVERTER SECTION(PART B)
BOTTOM INPUT
(PART A)
BOTTOM OUTPUT
(PART B)
FRONT VIEWRIGHT SIDE
BOTTOM VIEW
FRONT VIEW
RIGHT SIDE
2.2 [56]
33.3 [845]
10.9 [276]
DETAIL A
27.2 [691]
3.9 [99]
4.7 [120]TYP.3.9 [100]
TYP.7.9 [200]
TYP.
37.2 [945]
PILLARSPACING
36.7 [931]Foot
Spacing
.75
[19] TYP.
2.4 [61]
21.0 [535]
1.7 [42]
21.0 [535]
4.8 [122]
12.1 [307]
1.7 [42]
13.9 [354]
1.7 [42]
13.9 [354]
1.7 [42]
12.1 [307]
FORKLIFT OPENINGS
3.9 [99]
48.6 [1234]
FORKLIFT OPENINGS
61.8 [1570]
3.9 [100]
9.0 [229]
10.9 [276]
9.0 [229]
18.0 [457]
18.0 [457]
REAR
FRONT
SEE
A
8.0 [202]
8.0 [202]
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 35
Figure 24 Field connections, shipping split 500kVA Liebert® NXL™, multi-module or SMS with static bypass, Page 1
WH P/NSTART
(Part B- Inverter Cabinet)FINISH
(Part A- Rectifier Cabinet) Label
604309G1 02-806704 Inverter Gate Drive A UPSC To: 02-806701
ID: P0400A
604309G2 02-806704 Inverter Gate Drive B UPSC To: 02-806701
ID: P0400B
604309G3 02-806704 Inverter Gate Drive C UPSC To: 02-806701
ID: P0400C
604325G1 DCFAN_2 & DCFAP_1 DC Fuse Block 02-806708External Interface Board
To: 02-806708ID: P0814
M10 FLAT WASHER
M10 RIBBED WASHER(x2)
M10 HEX HEAD BOLT
(+)DC BUSBAR
(-)DC BUSBAR
DETAIL A
M10 NUT HEX
PART A - WIRE STARTING POINT PART B - WIRE FINISHING POINT
DC POWER CONNECTION BETWEEN PART A AND B.
604309G1
604309G2
604309G3
604325G1
02-806704-PHASE A
02-806704-PHASE B02-806704-PHASE C
DETAIL A
HARDWARE PROVIDED WITH PART B.(4) BOLTS TOTAL.
TORQUE CONNECTION TO 27 N-M, 240 IN-LBS.
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 36
Figure 25 Field connections, shipping split 500kVA Liebert® NXL™, multi-module or SMS with static bypass, Page 2
DC POWER CONNECTION BETWEEN PART B AND A.
HARDWARE PROVIDED WITH PART A.(4) BOLTS TOTAL.
TORQUE CONNECTION TO 27 N-M, 240 IN-LB.
M10 NUT HEX
M10 RIBBED
WASHER(x2)
M10 FLAT WASHER
M10 HEX HEAD BOLT
DETAIL B
LOOSEN HARDWARE TO ALLOW
BUSBAR TO MOVE TO JOIN TO
PART B BUSBAR.
RETIGHTEN AND TORQUE TO
27 Nm(240 in-lb)
604308G1
604313G1
604348G1
604352G1
604313G2
604307G1
604348G1604348G1
604349G1604348G1604348G1
(+) DC BUSBAR
(-) DC BUSBAR
DETAIL B
PART A - WIRE FINISHING POINT PART B - WIRE STARTING POINT
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 37
WH P/NSTART
(Part A- Rectifier Cabinet)FINISH
(Part B- Inverter Cabinet) LABEL
604308G1 UPSC 02-806705Bypass Control Board
TO: 02-806705ID: P0500
604313G1 UPSC 02-806705Bypass Control Board
To: 02-806705ID: P0501
604313G2 UPSC 02-806707Load VI
To: 02-806707ID: P0700
604307G1 UPSC 02-806707Load VI
To: 02-806707ID: P0701
604348G1 UPSC Power Supply To: Power SupplyID: P66A
604348G1 02-806708External Interface Board Power Supply To: Power Supply
ID: P66B
604348G1 HMI Power Supply To: Power SupplyID: P99A
604348G1 02-806710Fan Interface Board#1 Power Supply To: Power Supply
ID: P99B
604348G1 UPSC Power Supply To: Power SupplyID: P1300
604348G1 UPSC Power Supply To: Power SupplyID: P1302
604349G1 F48-2&F49-2Bypass PS Fuse Block Power Supply To: Power Supply
ID: P1303
604349G1 F46-2&F47-2Bypass PS Fuse Block Power Supply To: Power Supply
ID: P1304
604348G1 02-806708External Interface Board Power Supply To: Power Supply
ID: P55
604352G1 02-806710Fan Interface Board#1
02-806716AC Power Distribution Board
To: 02-806716 ID:P1011A
604348G1 02-806710Fan Interface Board#1
02-806710FAN Interface Board#2
To: 02-806710ID: P99
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 38
Figure 26 Main components, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass
Liebert®
IntelliSlot™
Housings
HMI Screen
Inter-Module
Communication
Board (behind
door)
EMO Button
(Optional)
Option Box
(6 Slots)
Main Input
Circuit Breaker
(CB1)
Module OutputCircuit Breaker(CB2)
Output
CB2/IOB
Circuit
Breaker
Board
Busbars
Neutral
Output
Ground
DC Input
External
Interface
Board (EIB)
Input
Busbars
Input
Ground
CB1/RIB Circuit
Breaker Board
FRONT DOORS NOT SHOWN
DOORS AND INNER SKINS NOT SHOWN
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 39
Figure 27 Main components, 625/750kVA Liebert® NXL™ UPS, SMS and 1+N multi-module unit with static bypass
Option Box(6 Slots)
Liebert
IntelliSlot
Housings
Main Input
Circuit Breaker
(CB1)
Module Output
Circuit Breaker
(CB2)
Back Feed
Circuit Breaker
(BFB)
Keylock or
EMO Button
(Optional)
InputGround
InputBusbars
DC Input
Output
Busbars
Bypass
Busbars
FRONT DOORS NOT SHOWN
DOORS AND INNER SKINS
HMI Screen
CB2/IOB
Circuit Breaker
Interface Board
CB1/RIBCircuit BreakerInterface Board
External
Interface
Board (EIB)
Inter-Module
Communication
Board (Located
Behind HMI Screen)
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 40
Figure 28 Outline drawing, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass
NOTES1. All dimensions are in inches (mm).2. 24" (610) minimum clearance above unit required for air exhaust and maintenance.3. Keep cabinet within 15 degrees of vertical.4. Top and bottom cable entry available through removable access plates. Remove, punch to suit conduit size and replace.
5. Unit bottom is structurally adequate for forklift handling.6. Depth dimension includes front door and rear panel.7. Width dimensions include side panels. Subtract 1.4" (35mm) when removing both side panels.
Rectifier / DCCable Entry
Control Cable Entry \ Exit
Bypass \ Output Cable Exit
Rectifier / DCCable Entry
Control Cable Entry / Exit
Outer Edge Corner Post
Front Most Edge Of Frame
Bypass \ Output Cable Exit.
Rectifier Center of
Inverter
71.6 [1819]
62.4 [1585]
62.4 [1585]
Inverter Split (Part B)
15.8 [402]
3.7 [94]
17.6 [447]
.0( 0 )
.0( 0 )
3.3 [85]
14.8 [376]
2.1 [53] 19.1
[486]
24.6 [626]
15.2 [385]
4.1 [105]
.0( 0 )
0
.6 [15]
Panel Width
76.8 [1950]
14.4 [367]
11.6 [294]
109.9 (2791)
10.6 [269]
1.6 [40]
17.7 [449]
23.6 [600]
12.3 [312]
24.6 [625]
31.5 [800]
36.3 [922]
26.0 [660]
31.5 [800]
23.8 [605]
Section A-ABottom View
B
Detail B
AA
GravityCenter ofGravity
125 (3175) 39.4 (1000)
Right Side ViewLeft Side View
Top View
Front ViewRectifier Split (Part A)
16.6 [423]
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 41
Figure 29 Outline Drawing, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass
NOTE
S1.
All d
imen
sions
are i
n inc
hes (
mm).
2. 24
" (61
0) m
inimu
m cle
aran
ce ab
ove u
nit re
quire
d for
air e
xhau
st an
d main
tenan
ce.
3. Ke
ep ca
binet
withi
n 15 d
egre
es of
vertic
al.4.
Top a
nd bo
ttom
cable
entry
avail
able
throu
gh re
mova
ble ac
cess
plate
s.
Re
move
, pun
ch to
suit c
ondu
it size
and r
eplac
e.5.
Unit b
ottom
is st
ructu
rally
adeq
uate
for fo
rklift
hand
ling.
6. De
pth di
mens
ion in
clude
s fro
nt do
or an
d rea
r pan
el.7.
Widt
h dim
ensio
ns in
clude
side
pane
ls. s
ubtra
ct 1.4
" (35
mm) w
hen r
emov
ing bo
th sid
e pan
els.
RECT
IFIE
R CE
NTER
OF
62.5
[158
7]78
.0 [1
981]
INVE
RTER
SPL
IT (P
ART
B)
24.6
[625
]
31.5
[800
]
36.3
[922
]29
.1 [7
39]
A
GRA
VITY
140.5
[356
8]
LEFT
SID
E VI
EWFR
ONT
VIEW
RECT
IFIE
R SP
LIT (P
ART A
)
AINVE
RTER
76.8
[195
0]
34.1
[866
]
23.8
[605
]
CENT
ER O
F G
RAVI
TY
39.4
[100
0]
RIGH
T SI
DE V
IEW
OUTE
R ED
GE
CORN
ER P
OST
FRON
T MO
ST
EDGE
OF
FRAM
E
.0 (0)
.0 (0)
.6 [15]
PANE
L WID
TH
DETA
IL B
RECT
IFIE
R / D
CCA
BLE
ENT
RYCO
NTRO
L CAB
LE
ENTR
Y \ E
XIT
71.6
[181
9]15
.8 [4
02]
3.7 [94]
17.6
[447
]
TOP
VIEW
16.6
[423
]
11.9
[302
]
34.3
[871
]
BYPA
SS \ O
UTPU
T CA
BLE
EXIT
RECT
IFIE
R / D
CCA
BLE
ENTR
Y
CONT
ROL C
ABLE
EN
TRY
/ EXI
T
.0 (0)
.0 (0)
3.3 [85]
14.8
[376
]
2.1 [53]
19.1
[486
]
24.6
[626
]
15.2
[385
]
4.1 [105
] SECT
ION
A-A
BOTT
OM V
IEW
B
9.2 [233
]
34.3
[872
]
BYPA
SS \ O
UTPU
T CA
BLE
EXIT.
126.8
[322
0]
1.6 [40]
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 42
Figure 30 Base detail drawing, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass
Bracket Mounting Locations (M10 Hexserts)
Footprint Spacing
Lift Clearance
Shipping Split
Rectifier Section(Part A)
Pillars Removed For ClarityBottom Cable Entry Panels
Front
Inverter Section(Part B)
FrontOf Unit
Forklift OpeningsForklift Openings
Rectifier Section(Part A)
Inverter Section(Part B)
Notes:
1. All dimensions are in inches (mm).
2. Unit bottom is structurally adequate for
forklift handling.
Bottom Input (Part A) Bottom Output (Part B)
Front View
Right Side
Bottom View
Front View
2.4
[61]27.7 [403] 27.7 [403] 27.7 [403] 27.7 [403]
1.7 [42] 1.7 [42]4.8 [122]
Right Side
2.1 [53] 33.3 [845]
24.6
[625]
10.9
[276]
9.0
[229]
9.0
[229]
10.9
[276]
10.9 [276]
9.0
[229]
3.9 [100]Typ
4.7 [120]Typ
7.9 [200]Typ
27.2 [691] 3.9
[99]61.8 [1570] 61.8 [1570]3.9
[100]
6.0 (152.4)
8.0 (203.2)
37.2 [945]
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 43
Figure 31 Base Drawing, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass
BRAC
KET
MOUN
TING
LOCA
TION
S(M
10 H
EXSE
RTS)
FOOT
PRIN
T SP
ACIN
G
LIFT
CLEA
RANC
E
SHIP
PING
SPL
IT
RECT
IFIE
R SE
CTIO
N(P
ART A
)
NOTE
S:1.
All d
imen
sions
are i
n inc
hes (
mm).
2. Un
it bott
om is
stru
ctura
lly ad
equa
te
for fo
rklift
hand
ling.
INVE
RTER
SEC
TION
(PAR
T B)
BOTT
OM C
ABLE
ENT
RY P
ANEL
SPI
LLAR
S RE
MOVE
D FO
R CL
ARIT
YRE
CTIF
IER
SECT
ION
(PAR
T A)
INVE
RTER
SEC
TION
(PAR
T B)
FORK
LIFT
OPEN
INGS
FORK
LIFT
OPEN
INGS
REAR
FRON
TOF
UNI
T
REAR
BOTT
OM IN
PUT
(PAR
T A)
BOTT
OM O
UTPU
T (P
ART
B)
FRON
T VI
EW
RIGH
T SI
DE
BOTT
OM V
IEW
FRON
T VI
EW
2.4 [61]
27.7
[703
]1.7 [4
2]
27.7
[703
] 4.8 [122
]
27.7
[703
]1.7 [4
2]
27.7
[703
]4.8 [1
22]
10.7
[271
]
RIGH
T SI
DE
2.2 [56]
33.3
[845
]
24.6
[625
]
10.9
[276
]9.0 [2
29]
9.0 [229
]10
.9 [2
76]
10.9
[276
]9.0 [2
29]
7.6 [193
]
3.9 [100
]TY
P
4.7 [120
]TY
P
7.9 [200
]TY
P
A
DETA
IL A
27.2
[691
]3.9 [9
9]0.75
[19]
6.0 (1
52.4)
6.0 (1
52.4)
37.2
[945
]PI
LLAR
SPAC
ING
36.7
[931
]FO
OTSP
ACIN
G
3.9 [100
]
3.900
61.8
[157
0]77
.3 [1
963]
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 44
Figure 32 Input terminal detail, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass
Notes1. All dimensions are in inches (mm).
2. Control wiring and power wiring must be run
in separate conduits.
3. Unless otherwise noted, use copper or aluminum
conductors suitable for at least 75°C.
4. All wiring is to be in accordance with national
and local electrical codes.
DC (-)Input
InputGround
DC (+)Input
InputPhases
Do not double-stack lugs (two lugs on same
side of busbar). This is to prevent the cables
from coming into contact with other busbars.
LEFT FRONT
A
B
C
LEFT SIDE (INPUT)
DC Inputs Input Phases Input Ground
O .56
(14)
Typ.)
.56
(14)
Typ.)2.0 (51)
Typ.)
.56
(14)
Typ.)
1.26 (32)
Typ.)
2.00(51) TYP
OO
1.75
(44) Typ.1.75
(44) Typ.
1.75
(44) Typ.
0
23.5 (598)
32.4
(824)
36.2 (920)
40.0 (1016)
51.3 (1303)
3.5
(90)3.5
(90)
76.8
(1950)
DUAL LUG CONNECTION DETAIL
Lugs
BusbarBolt
CB
1-3
CB
1-3
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 45
Figure 33 Input terminal detail, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass
Do not double stack lugs (two lugs on same side of busbar). This is to prevent the cables from coming into contact with other busbars.
LEFT FRONT (PART A)LEFT SIDE (PART A)
DC
INPUTSINPUT
PHASES
INPUT
GROUND
DUAL LUG CONNECTION DETAIL
DC (-)INPUT
INPUTGROUND
DC (+)INPUT
INPUTPHASES
LUGS
BUSBARBOLT
A
B
C
2.00 [51] TYP
1.75 [44] TYP
2.00 [51] TYP
1.75 [44] TYP
DIA. Ø.56 [Ø14]TYP
DIA. Ø.56 [Ø14]
TYP
DIA. Ø.56 [Ø14]TYP
1.26 [32] TYP
1.75 [44] TYP
.0
23.5(598)
32.4(824)
36.2 (920)
40.0(1016)
51.3(1303)
3.5 [90]
3.5 [90]
76.8(1950)
CB
1-3
CB
1-3
NOTES:
1. All dimensions are in inches (mm).
2. Control wiring and power wiring must be run in separate conduits.
3. Unless otherwise noted, use copper or aluminum conductors suitable for at least 75°C.
4. All wiring is to be in accordance with national and local electrical codes
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 46
Figure 34 Output terminal detail, 625/750kVA Liebert® NXL™, N+1 multi-module unit without static bypass, cont’d
NOTES:
1. All dimensions are in inches (mm)
2. Control wiring and power wiring must be run in separate conduits.
3. Unless otherwise noted, use copper or aluminum conductors suitable
for at least 75°C.
4. All wiring is to be in accordance with national and local electrical
codes.
Neutral
Output
Ground
Output
Phases
RIGHT SIDE (OUTPUT)RIGHT FRONT
A B C
OUTPUT GROUND
O
1.57 (40) Typ.1.38 X .56 Slot10 Places
NEUTRAL
O
1.38 x .5
Slot 5
Places Each
Busbar
OUTPUT
PHASES
O
1.75
(44) Typ.
(Top Entry)
1.75 (44)
Typ. (Bottom
Entry)
1.75 (44)
Typ. (Bottom
Entry)
1.75 (44)
Typ.
1.75 (44)
Typ. (Top
Entry)
.56 (14)
Typ. 5
Places
.56 (14)
Typ. 5
Places
.56 (14)
Typ. 20
Places
0
32.0
(813)
39.4
(1002)
53.2
(1352)
76.8
(1950)
DO NOT DOUBLE-STACK LUGS
CB
1-3
CB
1-3
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 47
Figure 35 Output terminal detail, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass, cont’d
NOTES
1. All dimensions are in inches (mm).
2. Control wiring and power wiring must be run in separate conduits.
3. Unless otherwise noted, use copper or aluminum conductors suitable for
at least 75°C.
4. All wiring is to be in accordance with national and local electrical codes.
BREAKERS AND
FRONT POST
REMOVED FOR
CLARITY
C B A N C B A
OUTPUT
GROUND
(TOP ENTRY)
OUTPUTGROUND
1.75(44)TYP
.56 DIA.(14) TYP
1.75(44)TYP
76.8(1950)
30.4(772)
33.9(860)
.0
56.4(1432)
BYPASS / OUTPUT NEUTRAL
1.49(37.7)TYP
BYPASS
NEUTRAL
BUS
OUTPUT
NEUTRAL
BUS
(BOTTOMENTRY)
RIGHT SIDE (PART B)RIGHT FRONT (PART B)
BYPASS / OUTPUT PHASES
OUTPUT GROUND
1.38 X .56 SLOT6 PLACESEACH BUSBAR
1.75(44) TYP
OUTPUTPHASES,APPROX.3.0" SPACINGBETWEENBUSBARS
BYPASSPHASES,APPROX.3.0" SPACINGBETWEENBUSBARS
.56 DIA.(14) Typ.
28 PLACES
.56 DIA.(14) Typ.
20 PLACES
1.30 (33) Typ.
1.75
(44) Typ.
OUTPUTNEUTRAL
BYPASSNEUTRAL
DO NOT DOUBLE-STACK LUGS
CB
1-3
CB
1-3
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 48
Figure 36 Shipping split 625/750kVA Liebert® NXL™ without static bypass
WH P/NSTART
(Part A - Rectifier Cabinet)FINISH
(Part B - Inverter Cabinet) LABEL
531985G1 UPSC (Control Door) 02-806704 - Inverter Gate Drive A To: 02-806704- Phase AID: P0400A
531988G2 UPSC (Control Door) 02-806707 - Load VI To: 02-806707-ID: P0700
531983G1 UPSC (Control Door) 02-806707- Load VI To: 02-806707-ID: P0701
531985G2 UPSC (Control Door) 02-806704 - Inverter Gate Drive B To: 02-806704- Phase BID: P0400B
531985G3 UPSC (Control Door) 02-806704 - Inverter Gate Drive C To: 02-806704-Phase C ID: P0400C
532061G1 Power Supply 02-806716 - AC Distribution BoardTo: 02-806716-__ Connection ID: P1305WH P/N: 532061G1
(+)
DC
Bu
sb
ar
(-)
DC
Bu
sb
ar
M1
0 F
lat W
ash
er
M1
0 R
ibb
ed
Wa
sh
er
(2x)
M1
0 H
ex H
ea
d B
olt
Lo
w-V
olta
ge
Wire
Co
nn
ectio
ns
Be
twe
en
Pa
rt A
an
d P
art
BW
ire
s a
re c
oile
d a
nd
tie
d in
Pa
rt A
.
Un
co
il, r
ou
te a
nd
co
nn
ect w
ire
s in
fin
ish
pa
rt a
s s
ho
wn
.
Use
wire
la
be
l a
s g
uid
e fo
r "t
o"
co
mp
on
en
t, c
on
ne
ctio
n
ID a
nd
wire
pa
rt n
um
be
r. T
ie w
ire
s a
wa
y fro
m s
ha
rp
ed
ge
s, b
usb
ar
an
d e
lectr
on
ic c
om
po
ne
nts
.
02
-80
67
16
-
02
-80
67
04
-
Ph
ase
A
02
-80
67
04
-
Ph
ase
B
02
-80
67
04
-
Ph
ase
C
02
-80
67
07
-
Ha
rdw
are
for
De
tail
A
Inclu
de
d
in T
his
Bo
x
Lo
ose
n h
ard
wa
re to
allo
w
busbar
to m
ove to join
to P
art
B B
usbar.
Re
tig
hte
n a
nd
to
rqu
e
to 2
7 N
-m (
24
0 in
-lb
)
Pa
rt A
(R
ectifie
r) -
Wire
Sta
rtin
g P
oin
t
53
19
85
GI
53
19
88
G2
53
19
83
G1
A
53
19
85
G2
53
19
85
G3
53
20
61
G1
De
tail
AD
C P
ow
er
Co
nn
ectio
n B
etw
ee
n P
art
A a
nd
Pa
rt B
Ha
rdw
are
Pro
vid
ed
With
Pa
rt B
: 4
Bo
lts T
ota
l
To
rqu
e C
on
ne
ctio
n T
o 2
7 N
-m (
24
0 In
-lb
s)
Pa
rt B
(In
ve
rte
r) -
Wire
Fin
ish
ing
Po
int
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 49
Figure 37 Shipping split 625/750kVA Liebert® NXL™ without static bypass (continued)
WH P/NSTART
(Part B - Inverter Cabinet)FINISH
(Part A - Rectifier Cabinet) LABEL
532049G1 02-806716- AC Distribution Board 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P1011WH P/N: 532049G1
532065G1 02-806710- Fan Interface Board 2 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P66WH P/N: 532065G1
532063G1 DC Fuse 02-806708- External Interface BoardTo: 02-806708-__Connection ID: P0814WH P/N: 532063G1
532065G1 02-806710- Fan Interface Board 3 02-806708- External Interface BoardTO: 02-806708-__Connection ID: P99BWH P/N: 532065G1
02
-80
67
08
-
Lo
w V
olta
ge
Wire
Co
nn
ectio
ns B
etw
ee
n P
art
B a
nd
Pa
rt A
Wire
s a
re c
oile
d a
nd
tie
d in
Pa
rt B
.
Un
co
il, r
ou
te a
nd
co
nn
ect
wire
s in
fin
ish
pa
rt a
s s
ho
wn
.
Use
wire
la
be
l a
s g
uid
e f
or
"to
" co
mp
on
en
t, c
on
ne
ctio
n I
D a
nd
wire
pa
rt n
um
be
r.
Tie
wire
s a
wa
y f
rom
sh
arp
ed
ge
s,
bu
sb
ar
an
d e
lectr
on
ic c
om
po
ne
nts
.
02
-80
67
10
-
Pa
rt A
(R
ectifie
r) -
Wire
Fin
ish
ing
Po
int
53
20
49
G1
53
20
65
G1
53
20
63
G1
53
20
65
G1
Part
B (
Invert
er)
- W
ire S
tart
ing P
oin
t
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 50
Figure 38 Shipping Split, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass
PA
RT
A -
WIR
E S
TA
RT
ING
PO
INT
PA
RT
B -
WIR
E F
INIS
HIN
G P
OIN
T
Ha
rdw
are
Pro
vid
ed
With
Pa
rt B
.(4
) B
olts T
ota
l.To
rqu
e C
on
ne
ctio
n to
27
N-m
(2
40
in
-lb
).
M1
0 F
LA
T W
AS
HE
R
M1
0 R
IBB
ED
WA
SH
ER
(x2
)
M1
0 H
EX
HE
AD
BO
LT
Lo
w V
olta
ge
Wire
Co
nn
ectio
ns B
etw
ee
n P
art
s A
an
d B
Wire
s a
re c
oile
d a
nd
tie
d in
Pa
rt A
.
Un
co
il, r
ou
te a
nd
co
nn
ect w
ire
s in
fin
ish
pa
rt a
s s
ho
wn
.
Use
wire
la
be
l a
s g
uid
e fo
r “T
O”
co
mp
on
en
t, c
on
ne
ctio
n ID
an
d w
ire
pa
rt n
um
be
r.
Tie
wire
s a
wa
y fro
m s
ha
rp e
dg
es, b
usb
ar
an
d e
lectr
on
ic c
om
po
ne
nts
.
DC
Po
we
r C
on
ne
ctio
n B
etw
ee
n P
art
s A
an
d B
(+)
DC
BU
SB
AR
LO
OS
EN
HA
RD
WA
RE
TO
AL
LO
WB
US
BA
R T
O M
OV
E T
O J
OIN
TO
PA
RT
B B
US
BA
R.
RE
TIG
HT
EN
AN
D T
OR
QU
E T
O2
7 N
-m (
24
0 in
-lb
)
02
-80
67
04
-P
HA
SE
A
02
-80
67
04
-P
HA
SE
B
02
-80
67
04
-
PH
AS
E C
02
-80
67
07
-
02
-80
67
05
-
02
-80
67
16
-
F4
2 &
F4
3
(-)
DC
BU
SB
AR
53
19
88
G2
53
19
85
G1
53
19
83
G1
53
19
85
G2
53
19
84
G1
53
19
85
G3
53
19
88
G1
53
20
61
G1
53
20
62
G1
De
tail
A
DE
TA
IL A
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 51
WH P/NSTART
(Part A - Rectifier Cabinet)FINISH
(Part B - Inverter Cabinet) LABEL
531985G1 UPSC (Control Door) 02-806704-Inverter Gate Drive A To: 02-806704- Phase A ID: P0400A
531988G2 UPSC (Control Door) 02-806707-Load Vi To: 02-806707-ID: P0700
531983G1 UPSC (Control Door) 02-806707-Load Vi To: 02-806707- ID: P0701
531985G2 UPSC (Control Door) 02-806704-inverter Gate Drive B To: 02-806704-Phase B ID: P0400B
531985G3 UPSC (Control Door) 02-806704-Inverter Gate Drive C To: 02-806704-Phase C ID: P0400C
531984G1 UPSC (Control Door) 02-806705-Bypass Control Board To: 02-806705-ID: P0500
531988G1 UPSC (Control Door) 02-806705-Bypass Control Board To: 02-806705-ID: P0501
532061G1 Power Supply 02-806716-AC Distribution BoardTo: 02-806716-__Connection ID: P1305WH P/N: 532061G1
532062G1 Power Supply 02-806705- Bypass Control BoardTo: 02-806705-__Connection ID: P44WH P/N: 532062G1
532062G1 Power Supply F42-2 & F43-2 Bypass PS Fuse Block To: F42-2 and F43-2WH P/N: 532062G1
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 52
Figure 39 Shipping Split, 625/750kVA Liebert® NXL™, SMS and 1+N multi-module unit with static bypass, continued
Low
Volta
ge W
ire C
onne
ction
s Betw
een P
arts
B an
d AW
ires a
re co
iled a
nd tie
d in P
art B
.Un
coil,
route
and c
onne
ct wi
res i
n fini
sh pa
rt as
show
n.Us
e wire
labe
l as g
uide f
or “T
O” co
mpon
ent, c
onne
ction
ID an
d wire
part
numb
er.Tie
wire
s awa
y fro
m sh
arp e
dges
, bus
bar a
nd el
ectro
nic co
mpon
ents.
PART
A -
WIR
E FI
NISH
ING
POIN
T.PA
RT B
- W
IRE
STAR
TING
POI
NT.
02
-80
67
10
-
02
-80
67
08
-53
20
65
G1
Fig1
2A-Shipp
ingS
plit7
50kVANXL
wStaticBy
pass-SMS1
plusNcontd
53
20
65
G1
53
20
49
G1
53
20
63
G1
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 53
WH P/NStart
(Part B - Inverter Cabinet)Finish
(Part A - Rectifier Cabinet) Label
532049G1 02-806716-AC Distribution Board 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P1011WH P/N: 532049G1
532065G1 02-806710-Fan Interface Board 2 02-806710- Fan Interface Board 1To: 02-806710-__Connection ID: P66WH P/N: 532065G1
532063G1 DC Fuse 02-806708- External Interface BoardTo: 02-806708-__Connection ID: P0814WH P/N: 532063G1
532065G1 02-806710-Fan Interface Board 3 02-806708- External Interface BoardTo: 02-806708-__Connection ID: P99BWH P/N: 532065G1
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 54
Figure 40 Single-input wire cabinet
M6 hardware for Ground Plate
provided in shipped-loose bag
inside Wire Cabinet
Remove Side Panels From Left Side of Rectifie
r Cabinet
and Install on Left Side of Wire Cabinet
M10 Hardware
Provided in
Shipped-Loose
Bag Inside
Wire Cabinet
Kickplate is provided as a
shipped-loose item
inside the Wire Cabinet
on inverter-side the UPS
Cabinet-to-Cabinet
Connection Hardware
DETAIL A
Reference of Rectifier
Corner Post
See Detail A
Remove upper and lower
internal panels before attaching
wire cabinet to UPS
Reference of Wire CabinetCorner PostSee Detail A
Rectifier
Cabinet
Corner Posts
Wire Cabinet
Corner Posts
Rectifier (
Not A
ll Components S
hown)
Wire
Cabinet
This hardware provided
on Rectifer Cabinet.
Reuse hardware
to mount ground plate
1 Ground Plate
Bolt
and
Washer
Bolt and Washer
Bolt and Washer
DETAIL B
B
COMPLETE ASSEMBLY
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 55
Figure 41 Alternate Liebert® NXL™ 500kVA bottom cable entry
Phase A and Phase B busbars can be removed to ease bottom cable entry on the Liebert® NXL™ 500kVA. The cables can be pulled and lugged.
1. Install Phase C cables.2. Install Phase B busbar as shown in Figure 41.3. Install Phase B cables.4. Install Phase A busbar as shown in Figure 41.5. Install Phase A cables.6. Verify that all busbar bolt connections are torque properly.
Liebert® NXL™
500kVA Rectifier
Front View with Busbars
and Breaker
Liebert® NXL™
500kVA Rectifier
Front View without Phase A
and Phase B Busbars
Phase A Busbar
Phase B Busbar
Phase C Busbar
DETAIL A
Torque Specifications
See Detail A
for Torque
Specifications
Glastic to
Bus Torque
240 in-lb,
Typical
Bolt-Nut to
Bus Torque
240 in-lb, Typical
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 56
4.1 Programmable Relay BoardThe Programmable Relay Board (PRB) provides a means to trigger an external device when an event occurs in the Liebert® NXL™. Each PRB has eight channels. Each channel has Form-C dry contacts rated at 1A @ 30VDC or 125VAC @ 0.45A.Any alarm/event can be programmed to any channel or channels. Up to four (4) events can be programmed to a relay. If multiple events are grouped to one relay, group the events logically to simplify troubleshooting when an event is triggered. The same alarm/event can be programmed to more than one channel. Up to two Programmable Relay Boards can be installed in the Liebert® NXL™ for a total of 16 channels. Programming is performed through the HMI touchscreen display.
Figure 42 Control wiring, Programmable Relay Board
NOTEUp to two (2) PRB’s can be installed in the Liebert® NXL™.
Table 12 Programmable Relay Board pinoutTerminal
BlockChanne
lPin No.
Common
Normally Closed
Normally Open
J71
CH1
A 1-3 1 2 3B 4-6 4 5 6
CH2
A 7-9 7 8 9B 10-12 10 11 12
CH3
A 13-15 13 14 15
J72
B 1-3 1 2 3
CH4
A 4-6 4 5 6B 7-9 7 8 9
CH5
A 10-12 10 11 12B 13-15 13 14 15
1 2 3 6 7 8 94 105 111213141516
1 2 3 6 7 8 94 105 11 121314 1516
1 2 3 6 7 8 94 105 11121314 1516
1 2 3
J74
J71
J72
J73
1. Customer control wiring connection points are terminals 1 through 15. (Pin 16 not used on J71, J72, and J73.)
2. Programmable Relay Board option includes eight signal channels with two Form-C dry contacts per channel (see Table 12).
3. All control wiring (by others) must be run separate from power wiring. Control wiring runs should not be combined in the same conduit.
4. Contact ratings: 1A @ 30VDC or 125VAC @ 0.45A
5. Maximum cable length 500 ft. (152m) with #16AWG and flexible stranded cable.
6. All wiring must be in accordance
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 57
TB3
CH6
A 1-3 1 2 3B 4-6 4 5 6
CH7
A 7-9 7 8 9B 10-12 10 11 12
CH8
A 13-15 13 14 15J74 B 1-3 1 2 3
Note: Pin 16 not used on J71, J72, and J73.
Table 12 Programmable Relay Board pinoutTerminal
BlockChanne
lPin No.
Common
Normally Closed
Normally Open
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 58
5.0 SPECIFICATIONSTable 13 Liebert® NXL™ UPS specifications
Model Size 500kVA 625kVA 750kVAInput Parameters
Input Voltage to Rectifier, VAC 480V 3-phase,3-wire
480V 3-phase,3-wire
480V 3-phase, 3-wire575V 3-phase, 3-wire600V 3-phase, 3-wire
Input Voltage to Bypass, VAC 480V 3-phase,3-wire or 4-wire
480V 3-phase,3-wire or 4-wire
480V 3-phase, 3-wire or 4-wire575V 3-phase, 3-wire or 4-wire600V 3-phase, 3-wire or 4-wire
Input Voltage Range, VAC +10% to -15; -15% to -20%1; -20% to -30%2; <-30%3
Input Frequency, Hz 60Permissible Input Frequency Range, Hz 55 to 65
Reflected Input THDi, Nominal Voltage, Full Load, % <5%Power Walk-In, sec 1 to 30 (selectable) in 1 sec. Increment
Bypass Neutral Current up to 1.7 times full-phase current Battery & DC Parameters
Battery Type VRLA (Valve Regulated Lead Acid) or FLA (Flooded Lead Acid)Nominal Battery Bus, VDC 480V
Battery Float Voltage, VDC 540VMinimum End of Discharge Voltage, VDC 384V (for VRLA / Flooded Lead Acid)
DC Ripple Voltage in Float & Const V Ch. Mode, % <1 (RMS value) < 3,4% VppTemperature Compensated Battery Charging Optional (with temperature probe)
Output ParametersInverter Type IGBT-based Sine-Sine PWM Controlled
Output Power for 0.9 PF Rating, kW 450 562.5 675
Output Voltage, VAC 480V 3-ph,4-wire
480V 3-ph,4-wire
480V 3-ph, 4-wire575V 3-ph, 4-wire600V 3-ph, 4-wire
Output Voltage Regulation, % < 1% (3-phase RMS average)Output Voltage Regulation (100% Unb. Load) < 2% (3-phase RMS average)
Output Frequency, Hz 60Output Frequency Regulation, % ± 0.1
Output THDv Linear Load at Nominal Voltage, % <2% Output THDv at Nominal Voltage
Including a 100kVA Non Linear Load per EN 62040-3, % 2.5% (max)
Capacity to Handle High Crest Factor Load 3:1Capacity to handle Step Load, % 0-100 or 100-0
Step Load Transient Recovery (linear loads), % Within 5% peak-to-peak in one line cycle.Unbalance Loads Current Capacity 100% of nominal phase current
Capacity to Handle Leading PF Load
0.9 lag to Nom Subject to Max. kW ratingat 0.95 Lead Subject to Max. kW rating
at 0.9 Lead Subject to 12.5% kW derate or same Rating and 10°C Temp. DerateVoltage Displacement, ° el 120° ±1° el (with 100% unbalanced load)
Compliance to FCC Class-A Standard
Overload Conditions, % FL105% for 85 minutes110% for 60 minutes125% for 10 minutes
150% for 1 minute1. The UPS will operate at full load, but the battery charge will either be reduced or Off (depending on input current).2. The UPS will operate at full load, but UPS may source share with the batteries (depending on input current).3. UPS will be in Battery mode
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 59
Physical Parameters and Standards, in (mm) Width, With Static Bypass 111.6 (2835) 140.5 (3568)
Width, without Static Bypass 111.6 (2835) 125 (3175) Depth 39.4 (1000) 39.4 (1000)
Height 76.8 (1950) 76.8 (1950) Weight, Unpackaged, lb. (kg) approx.,
with Static Bypass (SMS) 10,310 (4676) 13,650 (6192)
Weight, Unpackaged, lb. (kg) approx.,with Static Bypass (1+N) 10,410 (4721) 13,800 (6260)
Weight, Unpackaged, lb. (kg) approx.,without Static Bypass (N+1) 10,210 (4631) 13,100 (5950)
Max heat Dissipation, Full Load, BTU/hr 124,805 167,265 480V: 213,587575V: 215,790600V: 200,173
Cooling Air CFM 8113 15,760 15,760 Color Black (ZP-7021)
Front Door Opening (for serviceability) More than 180° Degree of Protection for UPS Enclosure IP 20 (with and without front door open)
Minimum Clearance, Top, in (mm) 24 (610)Minimum Clearance, Back, in (mm) 0Minimum Clearance, Sides, in (mm) 0
Location of Cable Entrance Top or Bottom
Standards and Conformities
UL 1778, 4th Ed.CSA 22.2 107.3
FCC Part 15, Class AIEC62040-2, Level 4, Criteria A
EN61000-4-3, Level 3, Criteria AEN61000-4-6, Level 4, Criteria A
EN61000-2-2, Criteria AEN61000-4-4, Level 4, Criteria A
ANSI C62.41, Category A3 &B3ISTA Procedure 1HIBC 2012/CBC 2010
WEEE Environmental Parameters
Storage Temperature Range, °F (°C) -13 to 158 (-25 to 70) Operating Temperature Range, °F (°C) 32 to 104 (0 to 40) (UPS)
Relative Humidity 95% or lessNon-Condensing (Operating and Non-Operating)
Maximum Altitude Above MSL, ft (m) 4920 (1500) (as per IEC 62040/3) - 1% Maximum kW derate / 328 risebetween 4921-9842 (100m rise between 1500-3000m)
1. Width dimensions are with side panels attached. Subtract 1.4" (35mm) for dimensions without side panels.2. Depth dimensions include the front door and rear panel.
Table 14 Current ratings—rectifier input UPS Rating
VoltageVAC
NominalCurrent
MaximumCurrentkVA kW
500 450 480 643 804
625 562.5 480 799 999
750 675 480 975 1219
750 675 575 815 1018
750 675 600 759 949
Table 13 Liebert® NXL™ UPS specifications (continued)Model Size 500kVA 625kVA 750kVA
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 60
Notes on Tables1. Nominal input current (considered continuous) is based on full-rated output load. Maximum current
includes nominal input current and maximum battery recharge current (considered noncontinuous). Continuous and noncontinuous current are defined in NEC 100.
2. Maximum input current is controlled by the current limit setting, which is adjustable. Values shown are for maximum current limit. If a smaller input feed breaker is used, the input current limit can be adjusted. Contact your Vertiv representative for more information.
3. The Rectifier Input Feed Breaker must be set to handle the ®NXL transformer inrush of up to eight times the nominal current.
4. For breaker coordination while the module is overloaded, see the current-versus-time values on the overload curves in Figures 43 and44.
5. Nominal battery voltage is shown at 2V/cell.
Table 15 Current ratings—bypass input UPS Rating
VoltageVAC
NominalCurrentkVA kW
500 450 480 601
625 562.5 480 752
750 675 480 902
750 675 575 753
750 675 600 722
Table 16 Current ratings—outputUPS Rating
VoltageVAC
NominalCurrentkVA kW
500 450 480 601
625 562.5 480 752
750 675 480 902
750 675 575 753
750 675 600 722
Table 17 Current ratings—battery UPS Rating Voltage
VACNominal
VDCMaximum Battery
Current at EODkVA kW500 450 480 480 1241
625 562.5 480 480 1530
750 675 480 480 1845
750 675 575 480 1851
750 675 600 480 1845
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 61
Table 18 Recommended conduit and cable sizesRectifier Input
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; # -size of phase cables per conduit; size of cable for ground per conduit
kVA kW Copper Conductors Aluminum Conductors
500 450 480 (3) 3C, 3-500kcmil, #2/0AWG (3) 3C 3-600kcmil, #4/0AWG
625 562.5 480 (3) 3C 3-600kcmil, #3/0AWG (4) 3C 3-500kcmil, 250kcmil
750 675 480 (4) 3C, 3-600kcmil, #4/0AWG (5) 3C 3-600kcmil, 350kcmil
750 675 575 (4) 3C, 3-600kcmil, #4/0AWG (5) 3C 3-600kcmil, 350kcmil
750 675 600 (3) 3C, 3-600kcmil, #3/0AWG (4) 3C 3-500kcmil, 250kcmil
Bypass Input
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; #-size of phase cables per conduit;#-size of neutral cables per conduit; size of cable for ground per conduit
kVA kW Copper Conductors Aluminum Conductors
500 450 480 (3) 4C, 4-600kcmil, 2-250kcmil, #1/0AWG (4) 3C 4-500kcmil, 2-400kcmil, #3/0AWG
625 562.5 480 (3) 4C 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C -600kcmil, 2-500kcmil, #4/0AWG
750 675 480 (4) 3.5C, 4-500kcmil, 2-500kcmil, #3/0AWG (5) 3C 4-500kcmil, 2-500kcmil, 250kcmil
750 675 575 (3) 4C, 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C 4-600kcmil, 2-350kcmil, #4/0AWG
750 675 600 (3) 4C, 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C 4-600kcmil, 2-500kcmil, #4/0AWG
Output
UPS Rating
Voltage
(VAC)
(# of conduits); size of conduits; #-size of phase cables per conduit;#-size of neutral cables per conduit; size of cable for ground per conduit
kVA kW Copper Conductors Aluminum Conductors
500 450 480 (3) 4C, 4-600kcmil, 2-250kcmil, #1/0AWG (4) 3C 4-500kcmil, 2-400kcmil, #3/0AWG
625 562.5 480 (3) 4C 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C -600kcmil, 2-500kcmil, #4/0AWG
750 675 480 (4) 3.5C, 4-500kcmil, 2-500kcmil, #3/0AWG (5) 3C 4-500kcmil, 2-500kcmil, 250kcmil
750 675 575 (3) 4C, 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C 4-600kcmil, 2-350kcmil, #4/0AWG
750 675 600 (3) 4C, 4-600kcmil, 2-250kcmil, #2/0AWG (4) 3C 4-600kcmil, 2-500kcmil, #4/0AWG
Battery
UPS Rating (# of conduits); size of conduits; # -size of phase cables per conduit; size of cable for ground per conduit
kVA kW Copper Conductors Aluminum Conductors
500 450 (4) 2.5C, 2-500kcmil, #4/0AWG (5) 2.5C 2-500kcmil, 350kcmil
625 562.5 (4) 2.5C 2-600kcmil, #4/0AWG (5) 2.5C 2-600kcmil, 350kcmil
750 675 (5) 3C, 2-600kcmil, 250kcmil (6) 2.5C 2-600kcmil, 400kcmil
Bonding
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 62
UPS Rating Main Bonding Jumper/Grounding Electrode Conductor
kVA kW Copper Conductors Aluminum Conductors
500 450 (1) #4/0AWG/ (1) #4/0AWG (1) #4/0AWG/ (1) #4/0AWG
625 562.5 (1) 250kcmil/ (1) 250kcmil (1) 250kcmil/ (1) 250kcmil
750 675 (1) 250kcmil/ (1) 250kcmil (1) 250kcmil/ (1) 250kcmil 1. Recommended cable sizes are 167°F (75°C) (THW) wire at 86°F (30°C) ambient. Unless otherwise noted, use copper or aluminum
conductors suitable for at least 75°C.2. For continuous operations not at 86°F (30°C), recommend that the site planner choose the appropriate cable type based on the
particular installation requirements.3. Conduit size is based on FMC type conduit with two neutral conductors rated at 200% of phase.
Table 18 Recommended conduit and cable sizes
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 63
Figure 43 Inverter overload data
Tim
e, se
co
nd
sL
oa
d, P
erc
en
t
Time, seconds
Continuous
13
63
60
40
25
15
10
64
21
0.5
10
01
59
25
03
94
60
0
93
7
50
00
37
48
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 64
Figure 44 Bypass overload data
10
0
0
50
0
15
00
10
00
20
00
30
00
40
00
50
00
25
00
35
00
45
00
11
0
11
0%
Lo
ad
- 1
5,0
00
Se
co
nd
s
Lo
ad
, P
erc
en
t
Tim
e, S
eco
nd
s
Time, Seconds
Continuous
12
01
30
14
01
50
16
01
70
18
01
90
20
0
30
00
60
0
39
4
25
01
59
10
06
06
42
10
.54
02
51
51
0
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 65
Table 19 Recommended lug sizes
Cable Size T&B Copper
One Hole T&B Copper
Two Hole T&B Aluminum
One Hole T&B Aluminum
Two Hole
#8 AWG 54930BE 54850BE 60104-TB —
#6 AWG 54905BE 256-30695-868 60109-TB —
#4 AWG 54906BE 256-30695-733 60114-TB —
#2-3 AWG 54942BE 54811BE 60120 —
#1 AWG 54947BE 54857BE 60126 —
#1/0 AWG 54950BE 256-30695-593 60132 —
#2/0 AWG 54951BE 54862BE 60138 60238
#3/0 AWG 54965BE 54864BE 60144 60244
#4/0 AWG 54970BE 54866BE 60150 60250
250kcmil 54913BE 54868BE 60156 60256
300kcmil 54914BE 54870BE 60162 60262
350kcmil 54915BE 54872BE 60165 60267
400kcmil 54916BE 54874BE 60168 60269
500kcmil 54918BE 54876BE 60171 60273
600kcmil 54920BE 54878BE 60176 60275
750kcmil 54922BE 54880BE 60178 60277
Table 20 Recommended torque valuesGrade 5 Steel: Unified Thread System Torque, lbf.*in. Class 8.8 Steel: Metric Thread System Torque, Nm*
Fastener Finish Plain Steel Zinc Plating Fastener Finish Plain Steel Zinc Plating
SizeThreads/Inch, Tpi
No Washer/Flat Washer
No Washer/Flat Washer Size
ThreadPitch, Tp
No Washer/Flat Washer
No Washer/Flat Washer
1/4 20 101 91
M50.8 6.1 5.5
28 116 104 0.5 6.9 6.2
5/1618 209 188
M61 10 9
24 231 208 0.75 11 10
3/8 16 370 333
M81.25 25 23
24 420 378 1 27 24
7/1614 593 534
M101.5 50 45
20 662 596 1.25 53 47
1/213 904 814
M121.75 87 78
20 1,020 918 1.25 95 86
9/1612 1,305 1,175
M142 139 125
18 1,456 1,310 1.5 151 136
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 66
NOTES
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 67
Vertiv | Liebert® NXL™ 500-750kVA UPS Installation Manual | 68
VertivCo.com | Vertiv Headquarters, 1050 Dearborn Drive, Columbus, OH, 43085, USA
© 2018 Vertiv Co. All rights reserved. Vertiv and the Vertiv logo are trademarks or registered trademarks of Vertiv Co. All other names and logos referred toare trade names, trademarks or registered trademarks of their respective owners. While every precaution has been taken to ensure accuracy andcompleteness herein, Vertiv Co. assumes no responsibility, and disclaims all liability, for damages resulting from use of this information or for any errors oromissions. Specifications are subject to change without notice. SL-25434_REV17_8-18/590-1963-501A