Technical Characteristics: Architecture Number of poles: 4 P Main electrical features Frequency: 50/60 Hz Rated operational voltage Ue: 400 V Voltage Rated insulation voltage: 500 V Rated impulse withstand voltage: 4000 V Electric current Rated operational current in AC21: 63 A Short circuit current withstand with MCB 63A Curve C - 4,5kA: 4,5 kA Power Total power loss under IN: 7,2 W Endurance Electrical durability at nominal load in AC21in operating cycles: 5000 Number of mechanical operations: 100000 Dimensions Depth of installed product: 72 mm Height of installed product: 90 mm Width of installed product: 143 mm Installation, mounting Tightening torque: 2,9Nm Connection Connection cross-sect. rigid cable: 25mm² Connection cross-sect. flexible conductor: 16mm² Type of connection: with screw Type of contacts: changeover with zero position Standards European directive WEEE: concerned Safety Protection index IP: IP20 Use conditions Storage temperature: -40 to 80 °C