Features GYL9 Residual Current Circuit Breaker is suitable to the circuit of AC 50/60Hz, rated voltage 230V for 2 poles and 400V for 4 poles, and rated current up to 100A. Bilateral busbar wiring capabilities to adapt to the wider use of premises. When people come across the electric shock or the leakage current of the electrical network exceeds the fixed value, this product can cut off the fault current in short period so as to protect person and the equipments. Maximum connecting ability of 35mm2, wiring torque 3.5Nm, applicable to a variety of installing equipments. It also can be used in the infrequent starting of the circuit and motors. The circuit breaker is suitable for industry, commerce, high-rise building, household and other kinds of places. In compliance with IEC/EN61008.1. Protection rating IP20. Specification:Pole: 4PRated Voltage Ue: 400VACInsulation Voltage Ui: 500VRated Frequency: 50/60HzRated Sensitivity: 0.03ARated Residual On/Off Capability Im: 500(In=25-40A), 630(In=63A)Short Circuit Current: 10000ADisconnect Time: ≤0.1SRated Impulse Withstand Voltage(1.2/50) Uimp: 6kVInsulation Test Voltage (within 1 minute): 2.5KVElectrical & Mechanical Life: 4000Reference Temperature for Setting of Thermal Element: 30℃Ambient Temperature: (daily average ≤ 35℃) -5~40℃Storage Temperature: -25~70℃ Package List:1 x Residual Current Circuit Breaker Package List