WMRC 4 Way Metal EV Protection Unit with A-Type EV RCBO Kit & Surge Protection
This 4-Way EV Protection Unit includes a pre-wired A-Type RCBO and Type 2 Surge Protection Device inside a compact metal enclosure - fully compliant with the 18th Edition Amendment 2. It’s built for fast, regulation-ready installs on domestic EV charge points. The included bi-directional RCBO features a twin-handle system: the...
This 4-Way EV Protection Unit includes a pre-wired A-Type RCBO and Type 2 Surge Protection Device inside a compact metal enclosure - fully compliant with the 18th Edition Amendment 2. It’s built for fast, regulation-ready installs on domestic EV charge points.
The included bi-directional RCBO features a twin-handle system: the black handle operates the MCB function (overcurrent), while the white handle operates the RCD function (earth leakage). This allows electricians to diagnose faults faster - ideal for tight install schedules.
- Application: EV charger protection with Type A RCBO + Type 2 SPD
- RCBO: 2-pole A-Type, bi-directional, with overload and RCD indication
- Surge Protection: Type 2 SPD, 20kA/40kA, DIN-rail mounted
- Enclosure: 4-way metal housing, white powder-coated (WMRC series)
- Cable Entries: 25mm and 32mm knockouts on top and bottom
- Standards: BS7671 18th Edition (Amendment 2), IEC 61009, IEC 61643
WMRC16BSP and WMRC20BSP are available on a 3-day lead time. All other versions available for next-day dispatch.
Q: Is this unit 18th Edition compliant?
A: Yes — it meets the surge protection and A-Type RCD requirements under Amendment 2 of BS7671 for EV installations.
Q: What’s the benefit of a bi-directional RCBO?
A: It can detect faults regardless of current flow direction, making it ideal for setups with inverter-driven loads or where phase switching is possible.
Q: What do the dual handles on the RCBO do?
A: The black handle controls overcurrent protection (MCB). The white handle controls RCD protection. If only the black trips, it’s an overload or short circuit. If both trip, it’s an earth leakage fault — making diagnostics faster.
Q: Can this be used with any EV charger?
A: Yes — it’s suitable for most single-phase EV chargers where 30mA A-Type protection and surge protection are required. Always confirm with charger manufacturer specs.
Q: What’s included in the unit?
A: The enclosure, a pre-fitted A-Type RCBO, and a Type 2 SPD — all fully wired and ready to go.
- Product Type: EV Protection Unit with RCBO and Surge Protection
- Enclosure: 4-way metal enclosure (WMRC series), powder-coated white
- Cable Entry: 25mm and 32mm knockouts (top and bottom)
- RCBO: 2-pole, A-Type, Bi-directional, High Immunity
- RCBO Ratings: 16A, 20A, 32A, 40A | Curve B or C | 30mA RCD
- SPD: Type 2, 2-pole, 20kA/40kA discharge capacity
- Mounting: DIN rail, pre-wired and labelled
- Standards: BS7671 (18th Edition), IEC 61009-1, IEC 61643-11
This unit is supplied fully pre-wired and ready for install by a qualified electrician. Designed for EV charge point circuits requiring overload, earth leakage, and surge protection in a single enclosure.
- Mount enclosure vertically on a solid indoor surface
- Use appropriate fixings for metal enclosures
- Route incoming tails and earths through provided 25mm or 32mm knockouts
- Ensure RCBO and SPD earth connections are secure and direct
- Do not modify internal wiring – any changes void product warranty
