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Type B RCDs for EV Chargers – When Are They Required?

EV chargers can generate DC leakage that blinds standard RCDs. This guide explains when Type B RCD protection is required,...

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Do Heat Pumps Need Type B RCD Protection? (Inverter DC Leakage Rules)

Modern heat pumps use inverter-driven compressors that can produce DC leakage. This guide explains when Type B RCD protection is...

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Are Type AC RCDs Still Allowed? (And Why Type B Replaced Them in Many Installs)

Type AC RCDs are still permitted, but their use is now extremely limited. This guide explains where Type AC falls...

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