Three Phase Boards & Accessories
Everything you need for three-phase installs in one place – distribution boards, surge kits, PME protection and more. All components are built to BS standards, clearly labelled, and available with next-day or Saturday delivery across the UK.
Read more about three-phase boards
A three-phase board (also called a 3 phase fuse board or 3 phase consumer unit) is designed to distribute incoming three-phase power across multiple circuits. These boards are commonly used in industrial switchgear installs, where balancing load and ensuring fault protection is critical.
Typical use cases include motor circuits, HVAC plant, lighting control, and renewable system integration with heat pump and EV-ready systems.
All units are manufactured in line with BS EN 61439 and suitable for installs that must meet 18th Edition Amendment 2. See our returns policy for hassle-free support.
4 Pole RCBO – 32A B Curve, Type A, 30mA (WCED WFR432B-030)
£37.19
The WCED WFR432B-030 is a 32A, B Curve, 4 Pole Type A RCBO designed for reliable protection in medium to high-load circuits. It combines overcurrent protection and earth leakage detection in one device, while the switched neutral ensures full isolation of all conductors for safer...
4 Pole RCBO – 20A B Curve, Type A, 30mA (WCED WFR420B-030)
£37.19
The WCED WFR420B-030 is a 20A, B Curve, 4 Pole Type A RCBO that provides combined protection against overcurrent, earth leakage, and arc faults. Its switched neutral design guarantees full isolation of all conductors, making it safer for testing, fault finding, and ongoing compliance with...
4 Pole RCBO – 16A B Curve, Type A, 30mA (WCED WFR416B-030)
£37.19
The WCED WFR416B-030 is a 16A, B Curve, 4 Pole Type A RCBO designed for dependable protection against overcurrent, earth leakage, and arc faults. With a switched neutral as standard, it isolates all conductors — ensuring maximum safety and compliance with BS 7671 (18th Edition)....
Pole RCBO – 10A B Curve, Type A, 30mA (WCED WFR410B-030)
£37.19
The WCED WFR410B-030 is a 10A, B Curve, 4 Pole Type A RCBO designed to protect single- and three-phase circuits against overcurrent, earth leakage, and arc faults. With a switched neutral, it ensures full isolation of all conductors for safer testing, maintenance, and fault protection....
Pole RCBO – 6A B Curve, Type A, 30mA (WCED WFR406B-030)
£37.19
The WCED WFR406B-030 is a 6A, B Curve, 4 Pole Type A RCBO designed to protect final circuits against overcurrent, earth leakage, and arc faults. With a switched neutral as standard, it ensures full isolation of live and neutral conductors, simplifying insulation resistance testing and...
What Is a Three Phase Board?
A three phase board, sometimes called a fuse board or consumer unit, splits incoming three-phase supply into manageable circuits. This ensures loads are balanced, fault protection is applied, and your installation meets UK wiring standards.
Where to Use Three Phase Fuse Boards
- Commercial and industrial premises with high load demand
- Motor circuits, HVAC, or plant equipment
- Lighting and power separation for safety
- Renewables and hybrid installs needing surge and PME protection
Standards & Compliance
All our three-phase boards and accessories are supplied to BS EN 61439 and IEC standards, with clear labelling for straightforward installation. Devices comply with 18th Edition Amendment 2, covering mandatory surge protection and PME safety requirements.
Explore Related Categories
Need to expand your installation? See our full range of surge protection devices, PME fault detection units, and enclosures.
Featured Three Phase Products
- 125A Three Phase Distribution Board – scalable protection for workshops, plantrooms, and industrial switchgear.
- 3-Phase SPD with MCB – pre-wired protection kit for transient overvoltage compliance.
- Three Phase PME Fault Detection Unit – essential for EV and renewable installs requiring PEN monitoring.
Trusted Supply
All boards and accessories are in stock and dispatched from our UK warehouse. Orders over £30 qualify for next-day delivery, with easy Saturday upgrade options. If you need to return an item, review our returns policy. Unsure which product suits your project? Contact our experts for tailored guidance.