3 Pole Contactors with Screw Clamp or Solder Termination Contactors have a switching voltage of 440Vac and a coil consumption (ac coils 50 / 60Hz rated) of 4.5VA (Hold in) and 30VA (inrush). Utilisation category AC3 DIN rail or screw mounting Ambient air temperature range -25 to +50°C Approvals CSA, UL, NEMKO, DEMKO, SEMKO, FIMKO Standards BS5424 Part 1/IEC 947, VDE 0660, NFC63 110