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PhotovoltaicsAustralia

Business Unit

Technology Newsletter

PV Power Solutions in SolarNovember 2011

2 DKSH Australia Pty. Ltd., 14-17 Dansu Court, Hallam VIC 3803, Australia. Freecall 1800 010 113, Fax (03) 9554 6677, www.dksh.com.au/pvpower

Branch plug

Type PV-AZS3

Part number 32.0009

Branch Plugs

Branch plugs and sockets are an economical method of joining 2 strings in parallel. The IP67 rated connectors make for a safe and reliable connection and save running 2 cables on the long return path from the far end of the PV array, saving time and money.

Branch plugs and sockets are available in MC3 and MC4 versions and are rated at 1000V DC and 30A.

MC3 Connector SystemIP67 1000V DC, 30A

Branch socket

Type PV-AZB3

Part number 32.0008

MC4 Connector SystemIP67 1000V DC, 30A

Branch socket

Type PV-AZB4

Part number 32.0018

Branch plug

Type PV-AZS4

Part number 32.0019

DKSH Australia Pty. Ltd., 14-17 Dansu Court, Hallam VIC 3803, AustraliaFreecall 1800 010 113, Fax 1800 010 118, Email [email protected] www.dksh.com.au

looks even better on

a wall

Straight from the catwalks of Europe, DKSH are proud to present the new PV Power IP65 enclosure. The all new PV Power enclosures are made from ASA (Acrylonitrile Styrene Acrylate). ASA material is extremely tough with exceptional chemical resistance, thermal stability and UV stabilised for outstanding resistance to weather and aging.

Distributed by DKSH Australia, the 4 pole to 36 pole IP65 range of enclosures come with blanking plates which you can use for spare pole spaces. These stylish enclosures are fitted with a small handle for locking the door and can be retrofitted with a key lock assembly.

The latest style inenclosure design.

DKSH00106

IP 65 rated

UV Stabilised

Tamper security seal

IEC 60670-1:2002, IEC 60670-24:2005 Compliant

Metric knockouts

Glow wire test to 650ºc

Insulation class II

Weather resistant

Available in 4,8,12,24 & 36 Pole

Choose the latest in European versatility, style and reliability. Call DKSH today on 1800 010 113.

DKSH0106_pvpowerEnclosures_circuit_mag_october2011.indd 1 16/09/2011 5:17:29 PM

DKSH Australia Pty. Ltd., 14-17 Dansu Court, Hallam VIC 3803, AustraliaFreecall 1800 010 113, Fax 1800 010 118, Email [email protected] www.dksh.com.au

looks even better on

a wall

Straight from the catwalks of Europe, DKSH are proud to present the new PV Power IP65 enclosure. The all new PV Power enclosures are made from ASA (Acrylonitrile Styrene Acrylate). ASA material is extremely tough with exceptional chemical resistance, thermal stability and UV stabilised for outstanding resistance to weather and aging.

Distributed by DKSH Australia, the 4 pole to 36 pole IP65 range of enclosures come with blanking plates which you can use for spare pole spaces. These stylish enclosures are fitted with a small handle for locking the door and can be retrofitted with a key lock assembly.

The latest style inenclosure design.

DKSH00106

IP 65 rated

UV Stabilised

Tamper security seal

IEC 60670-1:2002, IEC 60670-24:2005 Compliant

Metric knockouts

Glow wire test to 650ºc

Insulation class II

Weather resistant

Available in 4,8,12,24 & 36 Pole

Choose the latest in European versatility, style and reliability. Call DKSH today on 1800 010 113.

DKSH0106_pvpowerEnclosures_circuit_mag_october2011.indd 1 16/09/2011 5:17:29 PM


Distributor in focus

Solar Inception Pty Ltd is an Australian owned and operated solar power Project and Product Distribution Company committed to the global drive to reduce carbon emissions.

Their experience includes partnering with installation companies in the construction of commercial photovoltaic power plants and residential PV installation projects, providing expertise in the areas of project management, cost, estimating, cost control, project management, scheduling and value engineering.

Solar Inception’s management team includes Project Managers with successful project management backgrounds, experienced in product distribution, logistics, organisation and communications management. Their head office is located in Clontarf, Brisbane, with other warehouse facilities located in Victoria and plans to open a Sydney based office in January 2012.

Solar Inception has been involved in many large scale commercial and residential PV generation plant installation. These include projects such as a 29.40kW Roof top PV Generation plant at the Goodna RSL, QLD, 10.50kW off grid installation at Residential apartments. Bendigo, VIC, as well as a 31.52kW and a 5.25kW ground mount at a Solar Technology Demonstration facility at Alice Springs, NT.

Solar Inception is committed to maintaining high standards of quality and service, which is why they only deal with the highest quality manufacturers.

31.25kW Large Scale Dual Axis Tracking PV Plant Desert Knowledge Australia, Alice Springs, NT.

Solar Inception Queensland team at EcoGen Conference 2011

5DKSH Australia Pty. Ltd., 14-17 Dansu Court, Hallam VIC 3803, Australia. Freecall 1800 010 113, Fax (03) 9554 6677, www.dksh.com.au/pvpower

Our Values

Integrity The highest standards of integrity and honesty in all our customer relationships.

Quality The highest quality product at the most competitive price.

Passion A belief in making a significant difference for our customers and our world.

Solar Inception has been a proud supplier of DKSH products since the company’s inception. Doug Fletcher, General Manager of Solar Inception comments “DKSH remain a very important supplier who always produce great product and service.”

Solar Inception are proud authorised partners of highly efficient Hyundai Solar Modules. They are also one of Australia’s leading suppliers of SMA invertors and accessories, and distribute Clenergy roof and PV ground mount racking systems to suit many different types of roofing, and the Schneider Electric range of Xantrex inverters.

Brisbane warehouse

Brisbane warehouse staff with DKSH cable

Solar Inception Pty Ltd ACN 126 245 949

1/35 Robson Street (PO Box 3081) Clontarf QLD 4019 Ph: +61 7 3166 9099 Fax: +61 7 3283 2001 Email: [email protected]


As PV system designs become larger to maximize return on investments, the need for PV string protection is becoming more common.

PV Power string protection systems are available in numerous configurations and can be customised to suit your requirements.

Disconnection devices can also be fitted to perform the load breakable isolation function within the string protection system.

Please fill in the details below, and we will gladly quote you on your design.

String Protection & IsolationCustom request form

Input Output Options for glands MC3 MC3 Single cable entry MC4 MC4 2 cable entry Glands Glands 4 cable entry None None (DIN Terminals)

IP Consumer units Terminal box Single fuse carrier (Noark) Single fuse carrier (Gave)

Double fuse carrier (Noark) Double fuse carrier (Gave)

DC MCB

DC Isolator

Company: ............................................................................................. .......................

Name: ............................................................................................................................

Address: ........................................................................................................................

Phone No. .................................. Email Address: .........................................................

Max V OC ARRAY

Max I SC MOD

Max I MOD REVERSE

Number of Strings

Requested fuse size

Requested isolator current

Isolator for each string Yes No

No of MPPT inputs on inverter

System specs


Self-tapping tech screws seem to be the connection method of choice among many contractors, particularly for connecting earthing conductors to solar panel framework.

Clause 4.8 of AS/NZS 3100:2009 Approval and test specification – General requirements for electrical equipment, only permits the use of self-tapping screws for earth connections where:

a. It is not necessary to disturb the connection in normal use; and

b. at least two screws are used for each connection (don’t think we’ve ever seen that!).

Generally speaking, tech screws were never designed to be used for earth connections;

they were intended for fastening structural components. Various issues with using tech screws for earth connections include:

• Loosening of connections due to vibration and temperature variation

• Deterioration of connection when reused

• Poor electrical continuity, eg due to aluminium oxide/anodizing of solar panel framework, and

• Corrosion of connection

There are numerous earth connection devices available on the market specific for earthing solar panel framework. Ensure such devices are installed using techniques as specified by the manufacturer instructions, including sealing such connections against the effects of corrosion.

Earthing solar panel framework with tech screws

Would you trust this connection to be reliable for the life of the installation?

New and down to earth.

Article provided by:Office of the Technical RegulatorLevel 8, 11 Waymouth Street, AdelaidePhone 8226 5518Fax 8226 5529Email: [email protected]

Were you aware that new design guidelines and the possible reclassification of PV modules will see a requirement for earthing of PV arrays?

DKSH are delighted to announce that we have sourced more world leading products to be able to cater to this new requirement.

Earth Connectors (Wiley WEEB washers & Lugs)

The process of fitting lugs to every solar panel and earthing individually could add an hour or more to every installation – a very expensive exercise. Wiley have a solution!

Using their patented WEEB washer technology, a lug is fitted to the rail, and then WEEB washers are fitted to the clamps to electrically connect each individual PV module to the rail. The WEEB washer has special “teeth” that penetrate the anodised aluminium and create a gas tight and electrical bond. Once the rail is earthed, the process of earthing each PV module takes as little as 10 seconds.

Freecall 1800 010 113 www.dksh.com.au


The WEEB line of products is designed to bond solar PV modules to mounting structures and create an electrical path to ground. WEEBs eliminate the need for older, more costly grounding methods and greatly reduce the amount of labor and materials used in installations.

The innovative WEEB design removes the need to run ground wire to each individual module and eliminates the need for surface preparation on anodized aluminum components.

To install, WEEBs are placed between PV modules and mounting rails at clamping points or at bolted connections. When anti-seize is applied and the hardware is tightened down to the appropriate torque spec, the WEEBs’ specialized teeth embed into anodized aluminum, galvanized steel, or any electrically conductive metal to establish a gas tight electrical connection.

Data• Material: 304 stainless steel• Listed to ANSI-UL 467 by Intertek ETL

for use in Canada and the USA• Maximum electrical equipment ground

conductor size when used with 2 WEEBs contacting each module in an assembly: 6 AWG

• Outdoor rated.

Earthing

WEEB WasherWasher, Electrical Equipment Bond

What is a WEEB?The WEEB (Washer, Electrical Equipment Bond) is the first production part specifically intended for use in grounding photovoltaic systems. There is a family of WEEB parts, one for each kind of photovoltaic mounting system. The WEEBs are used to bond photovoltaic modules to the mounting structure. A ground is connected to the resulting composite structure so that the photovoltaic modules are also grounded. This is more technically described in NEC sections 250.136 and 250.134 and discussed at the company website, http://www.wellc.com/WEEB_nec.html.

How much current can WEEBs carry?All WEEBs are tested to carry a current of 1530 Amperes for 6 seconds. This is much more than any photovoltaic module can source and is why the WEEBs offer better lightning protection than previous grounding methods. All WEEBS meet ANSI/UL 467, standard for grounding and bonding equipment.

Why Should I Use it?• It saves you time! No more running ground

wire to every PV module• It’s safe... meets ANSI/UL467 requirements

for bonding/grounding systems• It’s reliable• Patented design features stainless steel

teeth that pierce into anodized aluminum, providing a gas tight connection which prevents oxidation and gives more consistent results than the method of scraping off the anodized coating by hand and using star washers.

The products use patent pending technology for bonding anodized aluminum surfaces together. Bonding PV modules to a mounting structure removes the need to wire the modules separately: just the mounting structure needs to be wired to ground.


WEEB WasherWasher, Electrical Equipment Bond

X Denotes place to install WEEB washers.

Company Mounting System WEEB -

LUG and B.J.

AET T6 w/ box modules ATF 6.7

Array Technologies Wattsun Micro MW Horizontal Beam Tracker WMR1/ WMR2

BP Solar BP Solar SMC 8.0

Conergy SolarGiant III CSG/ Electriwedge 6.7

Conergy SunTop CMC 8.2

Clenergy PV-ezRack PV Mounting Systems CMC 15.8

DP & W Ground Mount 9.5/ 9.5NL 6.7

DP & W Multi-Pole Mount DMC/ 11.5/ 9.5NL 6.7

DP & W Top-of-Pole Mount 9.5/ 9.5NL 6.7

DP & W Power-Fab CRS 9.5/ 11.5/ DPF/ WMC 8.0

DP & W Power Grid DPF/ WMC 8.0

DP & W Power Rail DMC 6.7

DP & W Power Rail P6 DPF 8.0

HES-Home Energy Solutions Fast Rack DPF 8.0

IronRidge XLR DMC 6.7

IronRidge XRS DMC 6.7

JAC Products JacRack JJR 8.0

K2 Systems K2 Systems KMC 6.7

Lumos Powermount Racking System w/ box modules*** UMC 6.7

NCP NCP Solar Mounting System DPF 8.0

NorthGrid NorthGrid Solar Mounting System DPF 8.0

Professional Solar Products RoofTrac PMC 6.7

ProtekPark Solar ProtekPark Solar -depends on clamp and module*** DMC or UMC 6.7

RBI Solar Ground Mount w/ box modules*** UMC 6.7

Schletter Eco 05, Solo 05 and Profil 05 SMC 8.0

Schuco ezFlatRoof 2.0/ ezGroundMount 2.0 SMC 8.0

SolarCity Heavy Duty Rail - depends on clamp*** UMC or DMC 6.7

Solar Liberty Dynoraxx SSF 6.7

Sollega InstaRack 11.5 6.7

SnapNrack PV Mounting System w/ box modules PMC 6.7

SunEarth Comprail PV Racking SCR 6.7

SunEarth Solar Strut SSR 6.7

Sunmodo Ez Helio*** UMC 6.7

Terrafix Solarpark Terrafix Solarpark SMC 8.0

T.R.A.-Mage Tegra SMC 8.0

TTI TTI w/ box modules WMC 6.7

Unirac RapidRac G10 9.5 6.7

Unirac SolarMount w/ box modules or Sanyo low lip*** UMC or DMC 6.7

Unirac SolarMount-I w/ box modules UGC-2 6.7

WEEB UMC

WEEB PMC

WEEB DMC

WEEB WMC

WEEB WMR1

WEEB WMR2

WEEB SMC

WEEB 9.5

WEEB 9.5NL

WEEB 11.5

WEEB CMC

WEEB KMC

WEEB JJR

WEEB SSF

WEEB DPF

***A WEEB-UMC can only be used in applications with modules frames that have a “boxed” cross-section.Refer to Installation Manuals for compatibility and details: http://www.we-llc.com/WEEB_datasheets.html


DescriptionThe German made, non-polarised KFD25 DC isolator consists of 2 x 3 pole switches, each capable of switching under load a maximum of 1200V DC. The isolator can be supplied in an IP67 rated enclosure or as a Din mount version.

Technical specifications• Voltage rating: 1500V max.• Insulation voltage rating: 1500V DC.• Plastic enclosed unit: IP67.• Non polarised, switchable under load.• Compliant with:

- AS/NZS 5033 - EN 60947-3 respectively VDE 0660 Part 1 - IEC 60364-7-712 : 2002

• Touch protected terminals.• Max. conductor size:

Flexible: 4mm2

Flexible with ferrule: 6mm2

Single core: 6mm2

Standard (Class 2): 6mm2

• Lockable in OFF position with padlock.• UV resistant.• Enclosed unit retains IP67 rating

regardless of mounting position; vertically, horizontally or sideways.

DC Isolator for Solar Photovoltaic (PV) Power Supply System

Number of series contactsTotal voltage (DC V)

(1.2 x Voc Array)

Rated current DC21B - (A) 3 6

25 240 480

25 330 660

25 420 840

25 510 1000

23 600 1200

19 690 1380

14 900 1500

12 1000 1500

9 1100 1500

7 1200 1500

System voltage 1000V - 1500V is only acceptable if normaly, only non-conductive pollution occurs.

Occasionally, however, a temporary conductivity caused by condensation may be expected.

Din mount version

76

5445.4

70.4

Part No. Mounting Type Code

110348987 IP67 Enclosure KFD25T206/AUP0013KT11V

110363011 Din mount KFD25T306/AUP0025VE2

DC Isolators


IP65 DC Isolator 900V 40A

122,5 34,5130

160 M25133

Part No. Description

AB5102WB7 IP65 DC Isolator 900V 40A

DescriptionThe Solartec non-polarised DC isolator consists of 2 x 5 pole switches, each capable of switching under load a maximum of 1000V DC.

The contacts are silver alloy and are in series to optimise electrical characteristics and can fit up to 16mm2 flexible conductors.

Technical specifications• Voltage rating:

900V DC 40A 1000V DC 25A

• Non-polarised and switchable under load.

• Compliant with: - AS/NZS 5033. - EN 60947-3. - IEC 60947-3 - IEC 60364-712. - UNE 20460-7-712.

• Enclosure is UV resistant, IP65• Switch is lockable in the OFF position.• Contact decks made of self

extinguishing polyester reinforced with glass fibre.

DC Isolators

Easy opening knockouts Large wiring space Padlockable handle

DKSH Australia Pty. Ltd.14-17 Dansu Court, Hallam VIC 3803, Australiawww.dksh.com.au/pvpower

Customer Service: 1800 010 113 Fax: (03) 9554 6677S.A. Customers: (08) 8440 1300 Fax: (08) 8241 5134W.A. Customers: (08) 6254 5900 Fax: (08) 9277 8755

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