EV Consumer Units with Built-In Surge Protection
Our EV-ready distribution boards are built for 18th Edition Amendment 2 compliance, giving you everything you need for a safe, regulation-ready EV charger install. Each unit comes with a Type 2 Surge Protection Device (SPD), the correct Type A or B RCDs, and pre-fitted RCBOs where required.
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Available in IP40 indoor boards or IP65 weatherproof enclosures, these boards are ideal for both single-EV chargers and multi-point installations. Options include PME-compliant designs that avoid the need for a separate earth rod, plus hybrid variants compatible with heat pump circuits, solar PV, and three-phase systems.
- Pre-wired & tested – cuts install time on site
- PME fault protection available – ready for EV regulations
- SPD as standard – required under BS 7671 for EV circuits
- Scalable – from domestic wallbox installs to commercial multi-bay setups
For delivery details see our delivery information or returns policy.
4 Way Metal EV Protection Unit – 40A B Curve A-Type RCBO + SPD (WMRC40BSP)
£31.90
The WMRC40BSP is a 4 Way Metal EV Protection Unit combining a 40 A B-Curve A-Type RCBO and Type 2 Surge Protection Device inside a compact steel enclosure. Designed for higher-load EV charger circuits, it delivers overload, earth-leakage, and transient surge protection in one pre-wired,...
PME Consumer Unit – 40A MCB + SPD, IP65 (WPKPME08/SP)
£106.75
The WPKPME08/SP is a weatherproof PME consumer unit pre-fitted with a 40A MCB, integrated PME fault detection relays, and a Type 2 Surge Protection Device (SPD). It delivers full PEN fault isolation and surge protection in one compact IP65 enclosure, removing the need for an...
EV Connection Unit – 100A Main Switch + Surge Protection + 40A MCB (WEVCU40BSP)
£34.19
The WEVCU40BSP is a pre-wired EV connection unit designed to provide local isolation, surge protection, and overcurrent protection for EV charge point circuits drawing up to 40A. Built into a compact 5-way IP40 metal enclosure, it includes a 100A double-pole main switch, Type 2 SPD,...
PME Consumer Unit – 40A C Curve Type A RCBO + SPD, IP65 (WPEPME08/SP)
£118.25
The WPEPME08/SP is an IP65 PME consumer unit pre-fitted with a 40A C Curve Type A RCBO, integrated PME fault detection relays, and a Type 2 Surge Protection Device (SPD). It ensures EV charger installations comply with 18th Edition Amendment 2 without the need for...
IP65 EV RCBO Kit – 40A B Curve A Type + Surge Protection (WPRC40BSP)
£34.16
The WPRC40BSP is a weatherproof IP65 EV RCBO kit fitted with a 40A B Curve Type A RCBO and a factory-fitted Type 2 Surge Protection Device (SPD). It provides combined overload, short circuit, earth leakage, and surge defence — all inside a robust plastic enclosure...
EV Surge Protection Explained
EV chargers draw high loads and are sensitive to transient overvoltage. That’s why the 18th Edition Wiring Regulations (BS 7671) make surge protection a requirement for EV installations. Without an SPD, voltage spikes from the grid or nearby lightning strikes can damage the charger and connected electronics.
Do EV Chargers Already Have Built-In Surge Protection?
Some EV chargers include limited surge suppression, but BS 7671 requires a dedicated SPD at the supply board. Using a compliant EV consumer unit ensures you meet regulations and keep the installation covered by manufacturer and insurance warranties.
Choosing the Right EV Distribution Board
- Domestic installs – compact boards like the 4-Way EV Protection Unit with SPD + RCBO.
- Commercial bays – larger capacity options such as the EV Connection Unit with Surge Protection.
- Outdoor installs – weatherproof boards including the 8-Way IP65 EV Connection Unit.
- PME supplies – boards with built-in PEN fault detection like the IP65 PME Fault Detection Unit, no earth rod required.
Trust & Compliance
All our EV surge protection boards are UK-tested and BS EN certified, shipped from stock with next-day delivery options. Each unit comes pre-wired to save time on site and includes full manufacturer warranty support. Returns are covered under our returns policy.
FAQs
Do I always need a Type B RCD for EV chargers?
Not always – most chargers are compatible with Type A RCDs, but certain models with DC leakage require Type B. Always check manufacturer guidance.
Can I use these boards with solar or hybrid systems?
Yes – many of our EV surge boards are designed to integrate with solar PV SPDs and heat pump boards, providing future-proof flexibility.
What’s the difference between an EV board and a standard consumer unit?
An EV-ready board is pre-fitted with the protection devices required under BS 7671: SPD, RCD/RCBO, and (where needed) PME fault detection.
Need help matching the right board to your charger brand or project? Contact our technical team for free advice.