Residual current circuit breaker Acti 9 iID. 4-pole, nominal current 63A, type A, SI, nominal residual current 300mA, operating voltage (Ue) 400-415V AC, insulation voltage (Ui) 400V. SI version prevents unwanted tripping in systems where high availability is required. Technology of the tripping unit - thermomagnetic. Additional auxiliary modules that can be connected in series (optional) - display of switch position, fault tripping, shunt release, undervoltage release, overvoltage release. Color RAL 9003. The ID residual current circuit breaker meets the following standards - IEC/EN 61008-1. This series is also VDE certified!