Residual current circuit breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the electric current is not balanced between the energized conductor and the return neutral conductor. Such an imbalance may indicate current leakage through the body of a person who is grounded and accidentally touching the energized part of the circuit. A lethal shock can result from these conditions. RCCBs are designed to disconnect quickly enough to prevent injury caused by such shocks.

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  Nonarc Circuit Breaker F360 RCCB
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  NOEFI RCCB
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  F202 F204 RCCB
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  F462 F464 series Residual current breaker without over-current protection
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  NBH1L Modular Din Rail ID RCCB
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  Residual Current Device nfin rccb