2 Pole B Type RCDs
The WCED WEV2 Series B-Type RCD provides advanced protection against smooth DC residual fault currents, as well as AC and pulsating DC faults up to 1000Hz. Fully compliant with IEC/EN 62423, it’s the correct choice for EV chargers, solar PV inverters, UPS systems, high-frequency converters, and other installations where DC...
The WCED WEV2 Series B-Type RCD provides advanced protection against smooth DC residual fault currents, as well as AC and pulsating DC faults up to 1000Hz. Fully compliant with IEC/EN 62423, it’s the correct choice for EV chargers, solar PV inverters, UPS systems, high-frequency converters, and other installations where DC leakage may be present.
Its two-pole design and 30mA sensitivity deliver dependable disconnection and safety in both domestic and commercial boards. Available in 40A and 63A variants, this device meets 18th Edition requirements for specialist circuits.
- Type B protection – detects AC, pulsating DC, and smooth DC leakage currents
- EV & renewable ready – ideal for EV chargers, solar PV, UPS, and frequency converters
- Two-pole configuration – suited to single-phase applications
- Available ratings: 40A and 63A
- Compliant with IEC/EN 62423 – meets 18th Edition requirements
When do I need a Type B RCD?
Type B RCDs are required where smooth DC residual currents may occur, such as EV chargers, solar PV inverters, and certain industrial equipment.
Is this suitable for EV charging points?
Yes – this unit is designed to meet the requirements for EV charger installations where DC leakage is possible.
Can it be used in domestic boards?
Yes – provided the board can accept a 2-pole device and the circuit requires Type B protection.
What’s the difference between Type A and Type B RCDs?
Type A devices detect AC and pulsating DC faults, while Type B devices also detect smooth DC faults and high-frequency leakage currents.
- Standards: IEC/EN 62423
- Number of poles: 2P
- Rated current (In): 40A or 63A
- Rated sensitivity (IΔn): 30mA
- Rated voltage (Un): 230/400V AC
- Frequency range: up to 1000Hz
- Dimensions (W x H x D mm): 54 x 87 x 79.5
- Protection degree: IP20
- Operating temperature: -25°C to +40°C
- Applications: EV charging, solar PV, UPS, building site supply cabins, frequency converters
Only to be installed by a qualified electrician in accordance with BS 7671. Confirm suitability for load type before fitting. Type B RCDs are required for circuits where DC residual current can be generated, such as inverter-based systems.
- Mounts on standard 35mm DIN rail
- Allow space for secure cable entry and bending radius
- Check all terminations meet manufacturer torque settings
- Test RCD function after installation using an appropriate tester for Type B devices
