Acti 9 Vigi C120 residual current block. 4-pole, nominal residual current 500mA, type A, selective, operating voltage (Ue) 230-415V AC, insulation voltage (Ui) 500V AC. Can be mounted on the right-hand side of the C120 series circuit breaker. Tripping due to residual current is indicated by a red, mechanical indicator on the knob. Terminals IP 20. Test button for regular function testing. Technology of the trip unit - thermomagnetic. Additional auxiliary modules that can be added in series (optional) - fault signaling switch, auxiliary switch, undervoltage release, overvoltage release, shunt release. The Vigi C120 residual current block complies with the following standards - IEC/EN 61009-1.