Siemens 5SV3846-8 Residual Current Circuit Breaker, Type A, Selective. Residual current operated circuit breaker, 4-pole, type A, selective, In: 63 A, 1000 mA, Un AC: 400 V. It belongs to RCCBs. Recorded manufacturer technical characteristics include Poles: 4P; RCD type: A; Rated current: 63 A; Voltage rating: AC 400 V; Residual current: 1000 mA.