PME Fault Detection Metal Consumer Unit with variants of RCBO/SPD/MCB
The WMEPME08/SP is an 8-module PME / PEN Fault Detection Consumer Unit with integrated Type A RCBO and Type 2 Surge Protection Device (SPD) - designed for EV charger installations that require full PME fault safety without the need for an earth rod. This metal-enclosed unit continually monitors supply voltage...
The WMEPME08/SP is an 8-module PME / PEN Fault Detection Consumer Unit with integrated Type A RCBO and Type 2 Surge Protection Device (SPD) - designed for EV charger installations that require full PME fault safety without the need for an earth rod. This metal-enclosed unit continually monitors supply voltage and isolates Live, Neutral, and Earth within 5 seconds if it detects dangerous voltage conditions, keeping installers compliant with BS 7671:2018 (18th Edition, Amendment 2).
Compact, installer-ready, and EV-compliant, it’s the ideal choice for chargers with integral DC leakage protection but no PME fault detection, such as many Tesla wall connectors.
- Integrated PEN loss detection - automatic voltage monitoring with safe isolation
- Type A Double Pole RCBO - 40A, C Curve, 30mA fault protection
- Type 2 SPD - protects connected devices from transient voltage surges
- No earth rod required - suitable for PME systems
- IP40-rated metal enclosure - 8-module capacity
- Available in multiple configurations (RCBO, RCBO+SPD, MCB+SPD)
Do I still need an earth rod with this board?
No - the integrated PME/PEN fault detection meets Amendment 2 requirements without a separate earth electrode.
Is surge protection built-in?
Yes - this model includes a Type 2 SPD to protect connected equipment from transient voltage surges.
Can this be used for Tesla chargers?
Yes - it’s ideal for Tesla and other EV chargers with integral DC leakage protection but no PME fault detection.
- Model: WMEPME08/SP
- Modules: 8
- Current Rating: 40A (RCBO)
- RCBO Type: Type A, Double Pole, C Curve, 30mA trip
- SPD: Type 2
- Voltage Monitoring: Under-voltage <207V, Over-voltage >253V
- Isolation Time: ≤5 seconds
- Reset: Auto (under-voltage), manual via reset button (over-voltage)
- Enclosure: IP40 steel, width 230mm, height 235mm, depth 110mm
- Standards: BS EN 61439-3, BS 7671:2018 A2
- Short Circuit Rating: 16kA
This unit must be installed by a qualified electrician familiar with PME/PEN fault detection requirements. Ideal for EV charge points with built-in DC leakage protection but lacking PME fault safety.
- Mount in a dry, ventilated location
- Connect as per supplied wiring diagram
- Verify PME isolation function before commissioning
- Ensure SPD earth lead is kept as short as possible
