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If surge protection is required
Time delay (S-Type) – prevents nuisance tripping in coordinated systems
High immunity design – minimises nuisance tripping
Automatic PME / PEN fault disconnection - isolates Live
Installer Tip: Use this variant where supply limits risk overload
40A 30mA Type B RCD (WEV240B-030) WEC Main Switch & Surge If surge protection is requiredWEV240B 030 is a 40A 30mA Type B RCD designed for applications where smooth DC residual currents and higher frequency AC residual currents may be present. Suitable for EV charger installations, solar PV systems, UPS systems and frequency converters, it provides broader protection than conventional RCD types. Where a standard RCD is not sufficient, this Type B device provides the broader leakage detection needed for inverter driven and specialist
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