AS/NZS 61439 and the November NZ transition
Referenced editions and verification information to agree before manufacture.
Technical resources / New ZealandSwitchboard resources.
Switchboard resources.
Guides & downloads.
Company profiles, system documentation and practical planning tools for your next switchboard project.
Project planning / Printable checklistA clearer brief.
A clearer brief.
A better starting point.
Use the printable CWS quote checklist to prepare your project brief, then send it with your drawings and equipment schedules.
Printable quote checklist (PDF)- Start with the project and supply.
Add the site, board type, supply details and known requirements. - Build the schedules.
Include motor, outgoing circuit, control and BMS schedules where available. - Send the supporting information.
Include drawings, documentation needs and your delivery programme. Leave unknown items blank for discussion.
Email the completed checklist and drawings to estimating@clivewilson.co.nz.
Technical libraryNZ standards guide
Useful information, in one place.
Choose a document or tool below. For project-specific ratings, verification and documentation, talk to our team about the proposed assembly.
Start with the project
Company profiles
Certificates and test records
PDF document
Prisma P certificate
Open document
PDF documentPrisma G certificate
Open document
PDF documentQuantum 36 kA test: TUVAU24WM3O
Open document
PDF documentQuantum 36 kA test: TUVAU24O4YP
Open document
PDF documentQuantum 50 kA test: TUVAU24E1TM
Open document
PDF documentQuantum 50 kA test: TUVAU24QO90
Open document
PDF documentQuantum temperature-rise test
Open document
PDF documentQuantum compliance document
Open document
Maintenance and catalogues
Planning guides
From technical question to project decision.
Use these guides to work through common switchboard decisions, then move into the relevant CWS service page when you are ready to price or specify the work.
Specification guide
How to write a switchboard specification
Fault rating, form of separation, IP rating, metering, documentation and other inputs that make a switchboard quotation comparable.
MSB guideWhat is a main switchboard?
Understand the role of the MSB, then review our main switchboard manufacturing capability for a live project.
MCC guideWhat is a motor control centre?
Learn how MCCs differ from ordinary distribution, then review CWS motor control centres, starter arrangements and drive integration.
Selection guideMSB vs MCC: which does your project need?
A practical comparison for consultants and contractors working out where power distribution ends and process motor control begins.
Design guideForm of segregation explained
How internal separation affects access, maintainability and the final switchboard arrangement.
Existing assetsUpgrade or replace an ageing switchboard?
Work through condition, ratings, documentation and shutdown constraints before deciding between remedial work, retrofit and replacement.
Maintenance guideIndustrial switchboard maintenance schedule
Plan routine inspection and maintenance, then talk to CWS about condition assessment, remedial work or a site maintenance programme.
Project planningCustom switchboard lead times in NZ
The information and approval steps that influence programme, from quotation through drawings, manufacture and FAT.
Ready to move from guidance to a project?Industrial switchboards · Main switchboards · Motor control centres · Industrial automation · Maintenance & retrofit
Your next projectSend us the drawings.
Send us the drawings.
Let’s get into the detail.
Send your specification, site requirements and target dates to our Invercargill team.
Discuss your projectOr call +64 3 214 4264