Three Phase Electrical Products
Explore our full selection of three-phase components – from surge units and PME boards to 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 enclosures – all compliant with BS EN 61439 and 18th Edition Amendment 2.
3 Phase Surge Protection Device Unit with 8 Way Metal IP40 enclosure (RCD/RCBO/MCB variants)
£65.35
Built to order - please allow 3 working days for dispatch from date of order. This three-phase surge protection unit comes fully pre-wired inside an 8-way IP40-rated metal enclosure, with a 4-pole Type 2 SPD (20kA/40kA) included as standard. It’s designed for commercial or industrial...
3 Phase Surge protection in Metal Enclosure
£38.34
The WME3P40SP is a fully pre-assembled 3 phase surge protection unit housed in a robust metal enclosure - ideal for protecting commercial and industrial installations against transient overvoltages. Built to meet 18th Edition Amendment 2 requirements, this unit features a 4 pole Type 2 SPD...
Metal Fuse Switch - WFMS
£28.00
The WFMS Metal Fuse Switch range provides a compact, compliant, and high-integrity solution for fused mains isolation across single-phase and three-phase installs. Built with robust enclosures and 22×58 fuse holders, each variant is designed to meet different site needs - from basic protection to integrated...
Fused Main Switch - WFIS100
£14.54
The WFIS100 is a compact, insulated fused main switch rated at 100A AC21 - designed for safe isolation and protection of incoming supplies. Supplied with both 80A and 100A general-purpose fuses, this unit is ideal for consumer unit upgrades, EV installs, and sub-main distribution boards....
Three Phase PME-Loss Fault Detection Consumer Unit
£82.56
£140.00
Built to order - please allow 3 working days for dispatch. The WCED 3 Phase PME Fault Detection Unit is a built-to-order EV distribution board designed to safely isolate PME faults — including PEN loss — without requiring an earth rod. Each unit continuously monitors...
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.