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OnBuy.com£177.52Visit shop Wced Wpepme12/Lb Pme Loss Unit With Type A 40A Rcbo, Spd, Load Balance Ip65 5060706836469
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The WCED WPEPME12/LB consumer unit is designed for EV chargers that lack integrated PME protection, earth leakage protection, overload protection, and load management. Its primary benefit is automatically isolating live, neutral, and earth within 4 seconds during under-voltage (below 207V) or over-voltage (above 253V) events, safeguarding connected equipment. A key consideration is that while under-voltage faults reset automatically, over-voltage faults require manual reset via a red button for safety. It features a 40A Type A RCBO, PME fault detection, SPD, and load balancing capabilities in an IP65 enclosure.
| Model Part Number | WPEPME12/LB |
|---|---|
| Brand | WCED |
PME (Protective Multiple Earthing) is an earthing system. For EV chargers that do not have their own integral PME fault detection, an external unit like the WCED WPEPME12/LB is crucial. It monitors the PME earthing system and isolates the charger if the PME earthing becomes faulty, preventing dangerous voltages appearing on the vehicle or charger casing.
Under-voltage isolation occurs when the supply voltage drops below 207V. Over-voltage isolation occurs when the supply voltage rises above 253V. The WCED unit isolates power in both scenarios to protect equipment.
No. Following an under-voltage isolation, the unit will automatically reset and restore power once the supply voltage returns to the normal operating range (207V-253V).
Yes. For safety reasons, after an over-voltage isolation, you must manually press the 'RED' button on the unit to reset the device and restore power.
SPD stands for Surge Protection Device. It is included in this unit to protect the connected EV charger and electrical system from transient over-voltages, such as those caused by lightning strikes or grid switching.
This unit is specifically designed for EV chargers that *do not* have integral PME protection, earth leakage protection, overload protection, and load management. It provides these functions externally.
Load balancing allows for intelligent management of power. If multiple high-demand appliances are on the same electrical circuit, it can help prevent overloading by adjusting the power available to the EV charger based on other demands.
The unit has an IP65 rating, which means it is protected against dust ingress and low-pressure jets of water. This makes it suitable for many outdoor installations, but direct, high-pressure washing or prolonged immersion should be avoided.
Check the incoming power supply voltage. Ensure it is within the 207V-253V operating range. Verify that no over-voltage or under-voltage isolation has occurred. If an over-voltage isolation occurred, press the red reset button. If an under-voltage isolation occurred, power should restore automatically when voltage normalizes. Check all connections are secure.
This indicates a persistent over-voltage condition. Have the mains supply voltage checked by a qualified electrician. The unit is functioning correctly by isolating power for safety. The over-voltage fault requires manual reset.
This suggests the mains supply voltage is frequently dropping below 207V. While the unit will automatically reset when voltage returns, a consistently low voltage may indicate an issue with the power supply or grid. Consult your electricity provider or a qualified electrician.
This could indicate an earth leakage fault or an overload on the circuit connected to the EV charger. Check the EV charger for faults and ensure its power demand does not exceed the 40A rating of the RCBO. If the fault persists, an electrician should inspect the EV charger and associated wiring.
Setup: Installation of the WCED WPEPME12/LB consumer unit must be performed by a qualified electrician in accordance with relevant electrical regulations. It is designed to be installed in a circuit that supplies an EV charger lacking integral PME, earth leakage, overload, and load management protection. Ensure the unit is correctly wired to the incoming power supply and the outgoing connection to the EV charger.
Compatibility: This unit is compatible with EV chargers that require external PME fault protection, earth leakage protection, overload protection, and load management. It operates on a 230V AC supply with a 50/60Hz frequency and is rated for 40A.
Care: The unit is housed in an IP65 enclosure, meaning it offers protection against dust and water jets. To maintain its performance, periodically check the enclosure for any damage. Ensure the reset button remains clear and unobstructed. Cleaning can be done with a dry or slightly damp cloth; avoid using abrasive cleaners or solvents. Regular inspection by a qualified electrician is recommended as part of routine electrical maintenance.
