IP65 PME Consumer Unit – 40A MCB (WPKPME08/C40)

Pre-wired in the UK and tested before dispatch – allow up to 3 working days for shipping.

The WPKPME08/C40 is an IP65 PME consumer unit combining a 40A MCB with PME fault monitoring for a single-phase EV charging circuit. It is the simplest configuration in this four-model family, with no integral RCBO and no factory-fitted SPD.

This model is intended for designs where the necessary residual-current protection and any required surge protection are already provided elsewhere. The MCB supplies overload and short-circuit protection only.

Key Features

• 40A MCB – overcurrent and short-circuit protection
• PME fault monitoring – switches line, neutral and protective conductor through the linked contactor arrangement
• IP65 enclosure – suitable for appropriately located indoor or outdoor installations
• Pre-wired assembly – built and tested before dispatch
• No integral RCD or RCBO – residual-current protection must be provided by the circuit design
• No factory-fitted SPD – surge protection must be assessed separately

PME Fault Protection for EV Charging

The built-in monitoring arrangement checks the supply against the manufacturer’s stated under-voltage and over-voltage thresholds. When a qualifying abnormal condition is detected, the assembly operates its linked switching arrangement to disconnect line, neutral and the protective conductor. Under-voltage recovery is automatic; an over-voltage operation requires manual reset.

Final selection still depends on the charger, supply characteristics, earthing arrangement and the protective devices already present. Installation, inspection and testing must be completed by a suitably qualified person in accordance with the manufacturer’s instructions and the current edition of BS 7671.

Compare IP65 PME Consumer Units

• Model: WPKPME08/C40
• Application: Single-phase EV charging circuit
• Rated voltage: 230/240V AC, 50/60Hz
• Circuit protection: 40A MCB
• Residual-current protection: Not included
• Surge protection: Not factory fitted
• PME monitoring thresholds: below 207V and above 253V
• Enclosure: IP65 polycarbonate/ABS
• Dimensions: 295mm × 255mm × 140mm
• Assembly standard: BS EN 61439-3
• Installation: To the current edition of BS 7671 and manufacturer instructions
• Marking: UKCA and CE

The WPKPME08/C40 is supplied pre-wired and tested. Installation and final verification must be completed by a suitably qualified person.

• Verify that suitable AC and DC residual-current protection is provided by the charger or elsewhere in the circuit.
• Coordinate the 40A MCB with the cable, load, fault level and upstream protective arrangement.
• Assess whether SPD protection is required and where it is provided.
• Confirm the selected location and cable entries maintain the required IP rating.
• Test the PME monitoring, switching and reset functions during commissioning.

What protection is included?

The unit includes PME fault monitoring and a 40A MCB. It does not include an RCBO or a factory-fitted SPD.

When is the MCB version appropriate?

It may be appropriate where suitable residual-current protection is already provided by the charger or elsewhere in the circuit. The complete protective arrangement must be verified.

Can this avoid a separate earth electrode?

The PME monitoring arrangement is designed for EV charging installations using automatic disconnection. Suitability must be confirmed for the particular installation and current BS 7671 requirements.

Which version adds surge protection?

WPKPME08/SP adds a factory-fitted Type 2 SPD while retaining the 40A MCB format.

Can it be installed outdoors?

The enclosure is rated IP65, provided the mounting method and cable entries preserve that rating.