product brandname SIRIUS Product type designation 3RT2 General technical data Size of contactor S00 Product extension ● function module for communication No ● Auxiliary switch Yes Insulation voltage ● rated value 690 V Degree of pollution 3 Surge voltage resistance rated value 6 kV maximum permissible voltage for safe isolation ● between coil and main contacts acc. to EN 60947-1 400 V Protection class IP ● on the front IP20 ● of the terminal IP20 Shock resistance ● at rectangular impulse