By WCED

Fitted Consumer Unit IP40 – PME + 40A RCBO (Surge Protection + kWh Meter + Load Balancing Options Available)

£88.00 - £135.00
£96.00
£96.00
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Standard Shipping 3-5 Buisness days£10
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SKU: Wmepme08/sp
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⚡Fitted Consumer Unit IP40 – PME + 40A RCBO + Surge Protection

Comprehensive Protection for EV Installations

This all-in-one, pre-wired consumer unit is designed to provide essential safety features for electric vehicle (EV) installations. Encased in a durable plastic IP65 enclosure, it combines PEN Fault Detection, 40A RCBO, and Surge Protection, ensuring compliance with the latest 18th Edition regulations.

🔧 Key Features

  • PEN Fault Detection: Monitors the supply voltage on both 230V and 240V lines. In the event of an under-voltage (<207V) or over-voltage (>253V), the unit isolates Live, Neutral, and Earth conductors within 5 seconds, ensuring safety during fault conditions.

  • 40A RCBO: Provides reliable overcurrent and earth fault protection, with a Type A RCD element offering 30mA sensitivity, suitable for EV charger installations.

  • Surge Protection: Optional Type 2 surge protection device to safeguard sensitive electronics from transient voltage spikes.

  • KWh Meter (Optional): Allows for accurate measurement of energy consumption, aiding in efficient energy management.

  • Load Balancing (Optional): Adjustable relay sensitivity from 20A to 110A, ensuring that the house fuse remains unaffected by the EV charger load.

  • IP40 Enclosure: Weatherproof and robust, suitable for outdoor installations, protecting internal components from dust and water ingress.

  • Compact Design: Dimensions of 300mm x 250mm x 150mm, with 25mm and 32mm circular cable entry knock-outs on top and bottom for flexible installation.

  • Datasheet available here

📋 Technical Specifications

Specification Details
Model WCED Fitted Consumer Unit IP65 – PME + 40A RCBO + Surge Protection
PEN Fault Detection Monitors and isolates conductors during under/over-voltage conditions
RCBO Rating 40A, Type A, 30mA RCD element
Surge Protection Optional Type 2 SPD
KWh Meter Optional
Load Balancing Optional, adjustable relay sensitivity from 20A to 110A
Enclosure Rating IP40 (Metal)
Dimensions 300mm (H) x 250mm (W) x 150mm (D)
Cable Entries 25mm and 32mm circular knock-outs (top and bottom)
Compliance

Meets BS 7671 and 18th Edition Amendment 2

🛠️ Installation Notes

  • Ensure the unit is mounted in a location that allows for proper ventilation and accessibility.

  • Verify that the supply voltage is within the acceptable range before installation.

  • For installations requiring surge protection, ensure the optional Type 2 SPD is included.

  • If using the KWh Meter or Load Balancing features, ensure that the appropriate modules are selected and installed.

  • Follow all manufacturer instructions and local regulations during installation.

This comprehensive consumer unit offers a reliable and compliant solution for EV charger installations, providing peace of mind through integrated protection features.

If you need further assistance or information on this product, feel free to ask!

Explore WCED Products
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  • All WCED Products — Browse the full range of WCED boards, enclosures, and accessories for domestic, commercial, and industrial EV installs.

  • Single Phase Boards — Ideal for home EV chargers, garages, garden rooms, and small-load circuits.

  • 3 Phase Boards — Perfect for 11kW–22kW chargers, workshops, and commercial high-load installations.

  • 3 Phase Distribution Boards — Ready-to-install 3-phase boards for commercial or multi-charger setups.

  • IP40 Boards & Enclosures — Indoor-rated boards for garages, workshops, and plant rooms.

  • IP65 Weatherproof Boards — Outdoor-rated, sealed boards for EV chargers and external installs.

  • Other WCED Products — Accessories, replacement parts, modules, and miscellaneous components.

Browse the full WCED range for reliable, installer-friendly EV distribution boards, enclosures, and accessories — suitable for domestic, commercial, and industrial EV installs.

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WCED Fitted Consumer Unit IP40 - PME + 40A RCBO + Surge Protection (Kwh meter + Load Balancing available)
£96.00
£96.00

PEN Fault Detection – Frequently Asked Questions

A PEN (Protective Earth and Neutral) fault occurs when the combined neutral and earth conductor in a TN-C-S (PME) system becomes disconnected or unstable. This can cause exposed metal parts, including EV chargers and vehicles, to become live and create a serious electric shock risk.
Yes. BS 7671:2018 (18th Edition Wiring Regulations), Section 722.411.4.1 requires EV chargers on PME supplies to have protection against open PEN conductor faults unless an approved alternative earthing method is used.
It constantly monitors voltage between line, neutral, and earth. If abnormal conditions are detected that indicate a broken PEN conductor, the device disconnects the EV charging supply within seconds to eliminate shock risk.
PEN fault protection prevents electric shock caused by loss of neutral/earth integrity. Surge protection devices protect against voltage spikes caused by lightning or grid switching. They are separate safety systems that often work together.
Not always. If the EV charger has certified built-in PEN fault protection compliant with BS 7671, an external device may not be required. However, many chargers do not include this, so verification is essential.
Not necessarily. An earth rod is part of a TT system. PEN fault detection allows safe operation on PME supplies without needing a separate earth electrode in many installations.
Only if a compliant alternative earthing system is used, such as TT. On PME supplies, PEN fault protection is required unless the charger already includes approved protection.
Yes. External PEN fault detection devices are commonly installed to upgrade existing EV charging systems to meet current BS 7671 requirements.

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