Three Phase Electrical Products
Explore our full selection of three-phase components – from distribution boards and surge units to PME boards, isolators, and enclosures. Built for industrial reliability and commercial compliance, with full manufacturer warranties and same-day dispatch on stocked lines.
Read more about three-phase consumer units
A three-phase board (also called a 3 phase fuse board or 3 phase consumer unit) distributes incoming three-phase supply into multiple protected circuits. They’re essential for commercial and industrial installations where high electrical loads must be balanced safely.
Typical setups include motor circuits, HVAC systems, lighting distribution, and renewable integration. Our three-phase range includes surge protection devices, PME fault detection units, and heat pump consumer units – all compliant with BS EN 61439 and 18th Edition Amendment 2. For peace of mind, review our returns policy.
3 Phase Surge Protection Device Unit with 8 Way Metal IP40 enclosure 40A RCD
£73.35
Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping. The WRDUSP440C is a ready-to-fit 3-Phase Surge Protection Device (SPD) Unit supplied in an 8-way IP40 steel enclosure. It includes a 4-pole Type 2 SPD (20kA/40kA) paired with...
Three Phase PME Fault Detection Consumer Unit for Multiple Charge Points WMTP28-WER40CSP
£346.95
The WMTP series is a range of 3-phase PME fault detection distribution boards, designed to protect multiple EV charge points without requiring an earth rod. Each unit features built-in PME fault detection, Type 2 surge protection, and pre-fitted 40A RCBOs - providing full disconnection of...
Metal Fuse Switch 100A with 3 × Fuses & SPD (WFMS100/3FSP)
£85.85
The WFMS100/3FSP is a 100A metal switch fuse isolator with SPD, supplied complete with a Type 2 Surge Protection Device and 63A, 80A and 100A cartridge fuse options. It provides fused isolation and surge protection in one compact metal enclosure for installers building compliant EV,...
3 Phase PME Fault Detection Unit SP (WARB5100C/PMESP)
£121.00
Pre-wired in the UK and built to order – allow up to 3 working days for dispatch. The WARB5100C/PMESP is a 3 Phase PME Fault Detection Unit with integrated Type 2 surge protection. It combines a 100A MCB main switch, PME relay, and SPD to...
WTPNSPKIT - TPN Single Phase Conversion Kit **NEW**
£4.98
The WTPNSPKIT Single Phase Conversion Kit allows you to adapt 125A TPN (Three-Phase Neutral) distribution boards for single-phase use quickly, safely, and cost-effectively. Instead of replacing a full 3-phase board, this kit provides the components required to repurpose it for single-phase loads while maintaining compliance...
What Is a Three Phase Board?
A three-phase board – often referred to as a 3 phase fuse board, consumer unit, or panel board – is designed to split an incoming three-phase supply into safe, manageable circuits. Each circuit is protected by fuses or breakers, preventing overload and ensuring compliance with UK wiring regulations.
Where Three Phase Consumer Units Are Used
- Commercial premises with high load demand
- Industrial environments running motors, plant, or HVAC
- Lighting and socket distribution across large buildings
- Renewable or hybrid installations requiring balanced three-phase supply
Compliance & Standards
All three-phase consumer units and accessories supplied are manufactured in line with BS EN 61439 and IEC standards. They are suitable for installs that must meet 18th Edition Amendment 2, including requirements for surge protection and PME safety devices.
Explore Related Categories
Looking for accessories to complete your install? Explore our full range of Surge Protection Devices, PME Fault Detection Units, and Enclosures.
Featured Three Phase Products
- 125A Three Phase Distribution Board – a reliable choice for commercial switchgear and plantroom installs.
- 3-Phase Surge Protection in Metal Enclosure – integrated SPD kit for compliance with 18th Edition regs.
- Three Phase PME Fault Detection Unit – essential for EV and renewable sites where PEN monitoring is required.
Trusted Supply
All products are UK-stocked and dispatched from our warehouse. Orders over £30 qualify for next-day delivery, with Saturday upgrades available. Need to return an item? See our returns policy. For tailored advice, contact our technical team.