Custom Main Switchboards NZ Up to 8,000A

Clive Wilson Switchboards manufactures custom main switchboards (MSBs) for New Zealand’s industrial, infrastructure, and commercial projects. Engineered to AS/NZS 61439 in our ISO 9001-certified Invercargill workshop, every MSB is built for your specific fault level, environment, and expansion requirements.

Main Switchboard Capabilities

Up to 8,000A delivered: on Logstrup platform; higher rated assemblies on project-specific basis
AS/NZS 61439: Compliance considered throughout design and manufacture
Protection options: Up to IP55 and IK10 where specified
Arc-flash mitigation options: Available to suit project requirements
ATS changeover: Auto/manual backup power
Simotrol platform: Manufactured under our ISO 9001-certified quality system

Need a quick prospective fault current calculation? Use our NZ Transformer Fault Current Calculator to estimate prospective short-circuit current from transformer kVA, secondary voltage and impedance.

Decorative black dot grid pattern background for Clive Wilson Switchboards website

Completed industrial switchboard ready for dispatch, Clive Wilson NZ

Industrial and Commercial Switchboards

Fully Configurable

Fully Configurable Industrial & Commercial Main Switchboards

We manufacture fully configurable LV switchboards for industrial and commercial applications, using modular systems in wall-mounted or floor-standing enclosures optimised for your space and requirements.

IP20 to IP55 options: Selected to suit the installation environment
Form 1 to Form 4a options: Internal separation selected to suit operation and maintenance requirements
Generator changeover & bus coupling: Automatic and manual arrangements available
Hinged end panels: Easier access for inspection
Power quality metering: Available to suit project requirements
Metering and communications: Available to suit SCADA and BMS requirements

Designed and manufactured in line with AS/NZS 61439. Complete CAD drafting and engineering services provided. Every configuration is designed around your site layout, available space, and future expansion requirements.

+64 3 2144264

estimating@clivewilson.co.nz

Large multi-section motor control centre switchboard with rows of isolator switches and busbars built by Clive Wilson Switchboards Invercargill

Custom Engineered to Order

What Goes Into a Custom MSB

Every MSB Built From Your Specifications

Every MSB we build starts with your single-line diagram and site-specific requirements. Our in-house engineering team tailors the layout, busbar arrangement and protection scheme to the project requirements and selected platform.

Incoming arrangements up to 8,000 A: Available on Logstrup, subject to project requirements
Bus section & bus coupler: Flexible distribution arrangements
Generator changeover (ATS): Automatic transfer switching
Power factor correction: Integrated PFC systems
SCADA & BMS metering: Communications-ready metering
Arc fault detection: Where specified for safety

We select from Simotrol, Schneider Prisma, Quantum and Logstrup systems according to rating, enclosure, separation and project requirements.

Trusted Across New Zealand

Industries We Supply

Custom Main Switchboards for Every NZ Sector

Our main switchboards go into major industrial and commercial projects across New Zealand. We work directly with electrical contractors, consulting engineers, and end users.

Dairy processing plants: Processing and production facilities
Freezing works & cold storage: Processing and temperature-controlled facilities
Water treatment facilities: Municipal and industrial
Mining & smelting: Heavy industrial environments
Commercial buildings: Office, retail, and hospitality
Energy & infrastructure: Generation and infrastructure projects

We have supplied MSBs to Fonterra, Meridian Energy, NZAS, Alliance Group, and Hastings District Council, along with hundreds of smaller industrial and commercial clients nationwide.

Do You Need Help
With Switchboards

Clive Wilson Switchboards Ltd manufactures industrial and commercial LV switchboards and Motor Control Centres (MCCs) in our ISO 9001-certified Invercargill workshop. We work across established switchboard systems including Simotrol, Schneider Prisma, Quantum and Logstrup, selected to suit the application, fault level and environmental requirements.

Give Us a Call Get in Touch

Custom main switchboard (MSB) built to AS/NZS 61439, Clive Wilson Switchboards NZ

Complete In-House Service

From Design to Delivery

Full MSB Manufacturing Process Under One Roof

We manage the full manufacturing process in-house at our Invercargill workshop, giving us closer control over quality, coordination and production schedules.

Electrical design & CAD drafting: Engineered to your specs
Enclosure modification & customisation: Built to your specifications
Powder coating: Durable finish in any colour
Assembly & wiring: Skilled in-house team
Factory acceptance testing: Completed before dispatch
Verification and testing: Relevant documentation supplied with each assembly

Each assembly is supplied with relevant test results, wiring diagrams and project documentation. We deliver nationwide and coordinate with your electrical contractor for site commissioning support.

Built for Performance

Why Choose Clive Wilson Switchboards

Main Switchboard Specialists Since 1971

With over 50 years of switchboard manufacturing experience, Clive Wilson Switchboards delivers MSBs rated up to 8,000A for New Zealand's most demanding projects. Every board is custom-engineered in our Invercargill workshop, designed, fabricated, wired, tested, and delivered under one roof.

Established switchboard systems: Simotrol, Schneider Prisma, Quantum and Logstrup
Full in-house capability: Design, fabrication, powder coating, wiring & testing
Built with compliance in mind: Our switchboards are designed and manufactured in line with AS/NZS 61439.
Manufactured under our ISO 9001-certified quality management system: Consistent manufacturing processes
Nationwide delivery: Site commissioning support available
EPLAN & CAD documentation: Drawings and relevant test documentation included

From dairy plants and freezing works to commercial buildings, we manufacture main switchboards for demanding New Zealand industrial and commercial environments. Contact our team for a competitive quote on your next MSB project.

+64 3 2144264

Monday to Friday 8:00 AM - 5:00 PM

Main Switchboard FAQs

Common questions specifiers and project engineers ask before placing an MSB order.

How long does it take to build a custom main switchboard?

Lead times depend on assembly size, platform, engineering requirements and component availability. We confirm the expected programme during quotation and update it as engineering and procurement progress.

What fault level rating can you build to?

Available fault ratings depend on the selected platform and project requirements. We confirm the applicable short-circuit rating during design and provide supporting verification documentation.

What forms of segregation do you offer?

Form 1 to Form 4a options are available, depending on the selected platform and project requirements. We help specifiers choose the appropriate form for the application.

Which OEM platforms do you build on?

We build with Schneider Prisma Plus G as a Schneider Prisma Partner, alongside Simotrol, Quantum and Logstrup platforms. We select the platform to suit the application, environment and project requirements.

Do you supply generator changeover and ATS arrangements?

Yes. Automatic and manual transfer schemes, bus coupling, and parallel operation with grid-tie. We handle full design from MSB through to genset interface.

Do you install the switchboard on site, or is delivery only?

Delivery nationwide is standard. Commissioning support and on-site installation are available with our maintenance arm. We coordinate with your electrician for connection and energisation.