bolted contact switches qa manually

Bolted Contact Switches

Product Focus

QA Manually Operated Switches

Accessories

Service and Replacement Parts

Bolted Pressure Technology

CBC Electrical Trip Switches

EATON CORPORATION Eaton’s Pringle Bolted Contact Switches

History

Eaton’s Pringle Switches have helped pioneer the devel-opment of high-quality electricalproducts for commercial andindustrial applications since1891. Eaton’s Pringle BoltedContact Switch was the first in the industry and is a standard in high-current switching applications. They are custom-built, are used inmany heavy-duty applications, and are suitable for use in ULT 891 switchboards.

Contact Information

To place an order for Eaton’sPringle Bolted Pressure ContactSwitches and/or replacementparts, please call 1-800-356-1243.For service, please call 1-888-329-9272. Additional information is available atwww.eatonelectrical.com/pringle.

Table of Contents

Bolted Pressure Technology . . . . . . . . . . . . . .4

CBC Electrical Trip & QA Manually Operated Switches . . . . .5 – 8

Accessories . . . . . . . . . . . . .9

SwitchVariations . . . . . . . . . . . . . .10

Replacement Parts and Service . . . . . . . . . . . .11

Eaton‘s PringleEBolted Contact Switches

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4

BoltedPressureTechnology

1. Switch is shown in open position.Diagram shows:

(a) Two Parallel Movable Blades

(b) Hinge and Jaw Bolts

(c) Linkage

(d) Handle

(e) Stationary Contacts

(f) Contact Block

(g) Arc Tips

2. Switch blades (a) are closed over stationary contacts (e). Continued motionof operating handle (d) cranks hinge andjaw bolts (b) into clamping nuts (h) onopposite side, applying bolted pressureat both the hinge and jaw contacts.

3. Shows Clamp Nut (h) With Pressure Adjustment

4. Shows Clamping Mechanism Detail

1Why Our BoltedPressure ContactSwitch Works Better

• Conducts high current with greater efficiency than knife spring or butt contact devices.

• The bolted contact switchopens and closes easily.

• The operating mechanismcloses the switch bladesquickly and actuates a bolting mechanism thatapplies pressure to both thehinge and jaw contacts. Thisprovides current conductingefficiency equivalent to thatof a bolted bus bar.

• The entire switch boltingmechanism is non-magneticto ensure that inductiveheating can not occur in any of the switch components. This ensureslong-term switch reliability.

EATON CORPORATION Bolted Contact Switches — Bolted Pressure Technology

b

b

c

d

a

e

e

2

3

f

g

a

d

e

bb

hh

h

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5EATON CORPORATION Bolted Contact Switches — CBC Electrical Trip & QA Manually Operated

CBC ElectricalTrip & QAManuallyOperatedBolted ContactSwitches

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5. OPEN 3000 Ampere CBC Switch WithoutExtra Accessories

6. CLOSED 3000 Ampere QA Switch WithoutExtra Accessories

7. CBC Bottom Fed Switch

8. QA Top Fed Switch, with Blown FuseDetector Option on Main Panel

9. Detail of Arc Chute and Pole Assembly(Shown OPEN)

7 8

Charge-Before-Close(CBC) Electrical Trip

The CBC switch features the Pringle bolted pressure principle and can be manuallyor electrically tripped. Theswitch features a Quick-ActingStored Energy Mechanism. The spring is compressed bythe operating handle andreleased near the end of thestroke to provide quick, positiveswitching action independent of the speed with which thehandle is operated. A storedenergy latch mechanism andsolenoid trip release providessimple and economical electrical opening.

The CBC is operated by rotating the handle counter-clockwise to charge. Theswitch can be closed only afterthe opening spring has beencharged. After closing, theswitch can be tripped manuallyby a mechanical pushbutton or electrically by remotely sending a signal to the solenoid. During trip, there is no handle movement.

Quick Acting (QA)Manually OperatedThe QA switch features the Pringle bolted pressure principle with a quick-actingoperating mechanism. Theswitch operation is achieved via manual operation. Thespring is compressed by theoperating handle and releasednear the end of the stroke toprovide quick, positive switch-ing action independent of thespeed with which the handle is operated. The QA switchmechanism prevents teasing of the contacts.

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6 EATON CORPORATION Bolted Contact Switches — CBC Electrical Trip & QA Manually Operated

Features and Accessories

• NEMAT standard terminal drilling.

• Provision for padlocking inOPEN position.

• 2-pole switches are same as3-pole, except right-handpole is omitted.

• Can be supplied in NEMA 1or 3R enclosures.

• Can be top or bottom feed.

Performance Standards

• 800 – 4000 A switches (UL 977).

TemperatureAll CBC and QA switches willcarry 100% of rated currentwithout exceeding 60°C rise at terminals. The maximumallowed ambient, when operat-ing at 100% rated load, is 40ºC.

No-Load Endurance• 800 A switches: 3500

no-load operations.• 1200 A switches: 2500

no-load operations.• 1600 – 2500 A switches:

2000 no-load operations.• 3000 and 4000 A switches:

1000 no-load operations.

Load Make-and-Break Ability• 800 – 4000 A switches:

3 load make operations at1200% of rating.

• 800 – 4000 A switches: 3 load break operations at600% of rating.

Load Make-and-Break Abilityat 200% of Rating• 800 – 1200 A switches:

100 operations.• 1600 – 2400 A switches:

50 operations.

Ratings/Withstand AbilityQA and CBC are 100% ratedusing Class L fuses. They arecapable of 12X Break and 6X Make and withstand andclose into currents having available currents of 200,000rms symmetrical amperes, atrated voltage.

The Class L fuses can clearfaults in one-half cycle or less,and the clearing time does not change with age/or load conditions. There is no calibration required — when a blown fuse is replaced with a new one, original circuit protection is restored.

Trip Solenoid (CBC Only)Solenoid is capable of trippingat 55% of rated voltage.

1. Detail of Arc Chute Assembly

2. Sample Spring Configuration

3. Top View of the CBC Shunt Trip Switch

4. Spring Detail for a CBC Switch

5. Pole Assembly and Pole Yoke Assembly

Switch is in closed position.

2

3 4 5

1Spring Mechanism The unique spring design is created by a series of concave-convex washers. The paired-washer springdesign provides a higherforce/distance ratio, making it easier to operate the mechanism. Should any pair of washerbecome inoperable for any reason, the entire springassembly will still be operableby means of the remainingpairs. This is unlike the situationif a coil spring were to fractureor fatigue.

KL LK

MinimumCubicle Width


MinimumCubicle Depth

HI

M

Charged — Closed Charged — Closed

HI

K KL L

J

800 – 4000 Ampere CBC-B

7EATON CORPORATION Bolted Contact Switches — CBC Electrical Trip

CBC TOP FEED ORDERING INFORMATION

Catalog Dimensions in Inches2 (mm) WeightAmperes Number1 A B C D E F Lbs. (kg)800 CB0833T120480 28.00 24.00 16.50 5.50 6.50 26.13 140

(711.2) (609.6) (419.1) (139.7) (165.1) (663.7) (64)1200 CB1233T120480 28.00 24.00 16.50 5.50 6.50 28.00 180

(711.2) (609.6) (419.1) (139.7) (165.1) (711.2) (82)1600 CB1633T120480 28.00 24.00 16.50 5.50 6.50 28.00 180

(711.2) (609.6) (419.1) (139.7) (165.1) (711.2) (82)2000 CB2033T120480 28.00 24.00 16.50 5.50 6.50 28.00 180

(711.2) (609.6) (419.1) (139.7) (165.1) (711.2) (82)2500 CB2533T120480 32.00 28.00 17.50 6.00 8.00 28.00 215

(812.8) (711.2) (444.5) (152.4) (203.2) (711.2) (98)3000 CB3033T120480 44.00 40.00 22.50 9.00 11.00 28.00 390

(1117.6) (1016.0) (571.5) (228.6) (279.4) (711.2) (177)4000 CB4033T120480 44.00 40.00 22.50 9.00 11.00 28.00 390

(1117.6) (1016.0) (571.5) (228.6) (279.4) (711.2) (177)

1 For 240 V solenoid, change catalog number from 120 to 240.2 Dimensions shown for reference only. Certified drawings sent on request.




F

Charged — Closed Charged — Closed

800 – 4000 Ampere CBC

AB

D DE E E E

AB

D D

C

CBC BOTTOM FEED ORDERING INFORMATION

Catalog Dimensions in Inches2 (mm) WeightAmperes Number1 H I J K L M Lbs. (kg)800 CB0833B120480 28.00 24.00 16.50 5.50 6.50 30.13 155

(711.2) (609.6) (419.1) (139.7) (165.1) (765.3) (70)1200 CB1233B120480 28.00 24.00 16.50 5.50 6.50 32.00 200

(711.2) (609.6) (419.1) (139.7) (165.1) (812.8) (91)1600 CB1633B120480 28.00 24.00 16.50 5.50 6.50 32.00 200

(711.2) (609.6) (419.1) (139.7) (165.1) (812.8) (91)2000 CB2033B120480 28.00 24.00 16.50 5.50 6.50 32.00 200

(711.2) (609.6) (419.1) (139.7) (165.1) (812.8) (91)2500 CB2533B120480 32.00 28.00 17.50 6.00 8.00 32.00 240

(812.8) (711.2) (444.5) (152.4) (203.2) (812.8) (109)3000 CB3033B120480 44.00 40.00 22.50 9.00 11.00 32.00 430

(1117.6) (1016.0) (571.5) (228.6) (279.4) (812.8) (195)4000 CB4033B120480 44.00 40.00 22.50 9.00 11.00 32.00 430

(1117.6) (1016.0) (571.5) (228.6) (279.4) (812.8) (195)

1 For 240 V solenoid, change catalog number from 120 to 240. 2 Dimensions shown for reference only. Certified drawings sent on request.

8 EATON CORPORATION Bolted Contact Switches — QA Manually Operated

K L L K

800 – 4000 Ampere QA-B




HI

M

HI

K L L K

J

800 – 4000 Ampere QA




AB

D DE E

CAB

D DE E

F

QA BOTTOM FEED ORDERING INFORMATION

Catalog Dimensions in Inches1 (mm) WeightAmperes Number H I J K L M Lbs. (kg)800 QA0833B480 24.00 20.00 12.00 4.00 6.00 27.00 110

(609.6) (508.0) (304.8) (101.6) (152.4) (685.8) (50)1200 QA1233B480 28.00 24.00 14.00 5.50 6.50 32.00 180

(711.2) (609.6) (355.6) (139.7) (165.1) (812.8) (82)1600 QA1633B480 28.00 24.00 14.00 5.50 6.50 32.00 180

(711.2) (609.6) (355.6) (139.7) (165.1) (812.8) (82)2000 QA2033B480 28.00 24.00 14.00 5.50 6.50 32.00 180

(711.2) (609.6) (355.6) (139.7) (165.1) (812.8) (82)2500 QA2533B480 32.00 28.00 15.00 6.00 8.00 32.00 215

(812.8) (711.2) (381.0) (152.4) (203.2) (812.8) (98)3000 QA3033B480 44.00 40.00 20.00 9.00 11.00 32.00 400

(1117.6) (1016.0) (508.0)) (228.6) (279.4) (812.8) (182)4000 QA4033B480 44.00 40.00 20.00 9.00 11.00 32.00 400

(1117.6) (1016.0) (508.0)) (228.6) (279.4) (812.8) (182)

1 Dimensions shown for reference only. Certified drawings sent on request.

QA TOP FEED ORDERING INFORMATION

Catalog Dimensions in Inches1 (mm) WeightAmperes Number A B C D E F G Lbs. (kg)800 QA0833T480 24.00 20.00 12.00 4.00 6.00 22.50 3.50 95

(609.6) (508.0) (304.8) (101.6) (152.4) (571.5) (88.9) (43)1200 QA1233T480 28.00 24.00 14.00 5.50 6.50 28.00 3.00 160

(711.2) (609.6) (355.6) (139.7) (165.1) (711.2) (76.2) (73)1600 QA1633T480 28.00 24.00 14.00 5.50 6.50 28.00 3.00 160

(711.2) (609.6) (355.6) (139.7) (165.1) (711.2) (76.2) (73)2000 QA2033T480 28.00 24.00 14.00 5.50 6.50 28.00 3.00 160

(711.2) (609.6) (355.6) (139.7) (165.1) (711.2) (76.2) (73)2500 QA2533T480 32.00 28.00 15.00 6.00 8.00 28.00 3.00 190

(812.8) (711.2) (381.0) (152.4) (203.2) (711.2) (76.2) (86)3000 QA3033T480 44.00 40.00 20.00 9.00 11.00 28.00 11.25 350

(1117.6) (1016.0) (508.0) (228.6) (279.4) (711.2) (285.8) (159)4000 QA4033T480 44.00 40.00 20.00 9.00 11.00 28.00 11.25 350

(1117.6) (1016.0) (508.0) (228.6) (279.4) (711.2) (285.8) (159)

1 Dimensions shown for reference only. Certified drawings sent on request.

AccessoriesBolted ContactSwitches

9EATON CORPORATION Bolted Contact Switches — Accessories

1. A Switch Can Include the Following Accessories Mounted on a Pan Assembly:

(a) Capacitor

(b) Ground Fault Relay

(c) PF Relay

(d) Control Power Transfer

2. Blown Fuse Detector Light Indicator Relays Feature (Showing Lights Normally On When the Switch is On or Off)

(f) Mounted to main pan assembly

3. Blown Fuse Detector

(e) Blown Fuse Detector with Lights Option Mounted to CBC switch

4. CBC Switch with Phase Failure Relayand Blown Fuse Detector Lights

CBC and QA SwitchesCome with VariousTypes of Accessories

Accessories Available

• Ground fault relay for usewith CBC (no integral CT).1

• Phase-failure relay andcapacitor tripping.1

• Undervoltage relay andcapacitor tripping.1

• Blown-fuse sensing with option for tripping.1

• Key interlocking.• Auxiliary contacts.• Indicator light schemes.

1 CBC only.

Phase Failure Relay Features

• Power ON indication.• Phase reversal.• Phase unbalanced protection

(2% to 8% adjustable) withindication (LED).

• Phase loss protection withindication (LED).

• Undervoltage protection(80%) with indication (LED).

• Overvoltage protection(115%) with indication (LED).

• Adjustable trip time delay(instantaneous to 30 sec).

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2

e

f

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• Adjustable reset time delay(1 sec to 5 min).

• Automatic reset.• Clear cover.• Meets NECT service

entrance requirements.• Maintains fault indication

after loss of power.

Ground Fault Features

• Integral test panel with“push to test” and “shunttrip bypass” pushbuttons forproper testing of device withthe ability to trip or not tripthe protective device.

• Positive visual trip indicator.• Adjustable time delay.• Discrete current threshold

adjustment.• Clear plastic cover.• Electromechanical relay

output positive ON and OFF.

• Meets NEC service entrance requirements.

Blown Fuse Detection Options

• Blown fuse detector withthree normally ON indicatinglights (does NOT trip).

• Blown fuse detector withthree normally OFF indicat-ing lights (does NOT trip).

• Blown fuse detector withoutlights (trips switch).

• Blown fuse detector withthree normally ON indicatinglights (trips switch).

• Blown fuse detector withthree normally OFF indicat-ing lights (trips switch).

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b c da

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SwitchVariationsBolted ContactSwitches

FP-CBC Ground Fault Protector

The Fault Protector combinesthe features of a CBC with integrated zero-sequence sensor and ground fault protection on the switch.

Ratings

• 480 V, UL. • 600 V, CSA.• 800 – 4000 A, 200,000 AIC.

Features

• Charge-before-close mechanism.

• Manual/electrical trip, quick-positive switching action.

• Integrated zero-sequencesensor and ground fault protection.

• 3-pole, 4-wire.• Can be supplied in NEMA 1

or 3R enclosures.

Accessories

• Blown fuse detector.• Phase failure relay with

capacitor trip.

Notes

• 5000 and 6000 A ratings areavailable (no UL listing).

EO-CBC —Electrically Operated

The EO CBC combines the features of a CBC but includesan operator with a linear motorwhich electrically charges thestored-energy mechanism andcloses the switch.

Ratings

• 480 V and 600 V. • 800 – 6000 A, 200,000 AIC.

Features

• Identical dimensions to CBC.• Quick-positive

switching action.• Bottom feed

configuration available.• 3-pole, 3-wire.• Can be supplied in NEMA 1

or 3R enclosures.• Separately mounted

control box (supplied).

Notes

• All switches are rated 480 V,control circuit on all switchesis 120 Vac.

• A control box sized approximately 16 x 14 x 6that is available for separatemounting includes a controlpower transformer.

PMS — Mill Switch

The PMS is an enclosed switchcommonly used as a disconnectswitch with a side operatedmechanism. Applicationsinclude steel mills, foundries,shipyards, heavy equipmentwarehouses, or any other industrial plant requiring similar applications.

Ratings

• ac or dc applications.• 800 – 4000 amperes.

Features

• 2- or 3-poles.• Fusible or non-fusible

configurations.• Four basic configurations are

available to meet differentapplication requirements:• Cable entry in the top

and exit out of the bottom (TB).

• Cable entry and exit in the top (TT).

• Cable entry in the bottomand top exit (BT).

• Bottom entry and exit of cable (BB).

EATON CORPORATION Bolted Contact Switches — Switch Variations

1. FP — Fault Protector

CBC with integrated zero-sequence sensorand ground fault protection.

2. EO — Electrically Operated CBC

3000 ampere switch shown.

3. PMS — Mill Switch

2-pole, 250 Vdc, wall-mounted.

1 2 3

• All terminals are drilled toNEMA standards:• Accepts 4 connectors

per terminal for 800 –2000 A switches.

• Accepts 6 connectors per terminal for 2500 –4000 A switches (cablesizes #2 to 1000 kcmil).

• Enclosures for PMS offer a variety of features, enclo-sures are NEMA 12 for wallor column mounting —indoors or outdoors.

Additional Products UsingPringle’s Bolted PressureContact Technology

• Manual transfer switches: • Come in either vertical or

horizontal configurations.• Come in NEMA 1 or

3R enclosures.• Live front switches:

• Switch comes in 1-, 2-, 3- or 4-poles.

• Non-load break ratings,has a non-spring slowmake-slow break characteristics.

ReplacementParts andServiceBolted ContactSwitches

11EATON CORPORATION Bolted Contact Switches — Replacement Parts and Service

4

4. Pringle Switch Detail — ExampleShown is 3000 A

(a) Deadfront

(b) Pole Yolk Assembly

(c) Pole Assembly (6)

(d) Arc Chute Assembly (6)

5. CBC Operating / Deadfront Mechanism(Notice the Use of 2-Spring Mechanism)

6. QA Operating / Deadfront Mechanism

a

b

c

d

Replacement Parts and Service

Replacement Parts

In order to ensure proper andefficient operation of your Pringle switch and minimizedowntime caused by damagedparts, or to upgrade your existingswitches, we offer the followingparts for field or Pringle Servicetechnician installation:• Pole and pole yoke assembly.• Arc chute assembly

or arcing parts.• Bolted pressure

clamping mechanism.• Coil / solenoid assembly.• Complete operating

mechanism (deadfront).• Complete pan assembly or

individual accessory parts.• Handles.

Servicing Your Eaton Pringle Switch

Pringle switches are often themain disconnect switch in a distribution system. Continuousoperation and minimal downtimeis therefore critical. Althoughthese switches rarely fail, like anyother mechanical device, regularmaintenance is recommended.We have a dedicated team readyto assist you.

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Contact Information

To place an order for Eaton’s Pringle BoltedPressure Contact Switches and/or replace-ment parts, please call 1-800-356-1243. For service, please call 1-888-329-9272.Additional information is available atwww.eatonelectrical.com/pringle.

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© 2006 Eaton CorporationAll Rights ReservedPrinted in USAPublication No. BR00808001E / Z4394October 2006

Eaton Electrical Inc.1000 Cherrington ParkwayMoon Township, PA 15108United Statestel: 1-800-525-2000www.EatonElectrical.com UL is a registered trademark of Underwriters

Laboratories Inc. CSA is a registered trademarkof the Canadian Standards Association. NEMAis the registered trademark and service mark of the National Electrical ManufacturersAssociation. National Electrical Code and NECare registered trademarks of the National FireProtection Association, Quincy, Mass.

Eaton’s electrical business is a global leader in electricalcontrol, power distribution, and industrial automation productsand services. Through advanced product development, world-class manufacturing methods, and global engineering servicesand support, Eaton’s electrical business provides customer-driven solutions under brand names such as Cutler-HammerT,PowerwareT, DurantT, HeinemannT, HolecT and MEMT, whichglobally serve the changing needs of the industrial, utility,light commercial, residential, and OEM markets. For moreinformation, visit www.EatonElectrical.com.

Eaton Corporation is a diversified industrial manufacturer with2005 sales of $11.1 billion. Eaton is a global leader in electrical systemsand components for power quality, distribution and control; fluidpower systems and services for industrial, mobile and aircraft equipment;intelligent truck drivetrain systems for safety and fuel economy; andautomotive engine air management systems, powertrain solutions andspecialty controls for performance, fuel economy and safety. Eaton has60,000 employees and sells products to customers in more than 125 countries.For more information, visit www.eaton.com

bolted contact switches qa manually

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