Power contactor, application: power contactor for motors, complete devices up to 170 A, utilization category: AC-1: non-inductive or slightly inductive load, resistance furnaces, AC-3: squirrel cage motors: starting, switching off during operation, AC-4: squirrel cage motors: starting, countercurrent braking, reversing, inching, connection technology: screw terminals, note: also suitable for motors of efficiency class IE3, rated operating current AC-3 380 V 400 V: Ie = 115 A, rated operating current AC-1 conventional thermal current, 3-pole, 50 - 60 Hz open at 40 °C: Ith = Ie = 160 A, encapsulated: Ith = 115 A, rated operating current AC-1 conventional thermal current 1-pole open: Ith = 325 A, encapsulated: Ith = 285 A, max. Rated operating power of three-phase motors 50 - 60 Hz AC-3 220 V 230 V: P= 37 kW, 380 V 400 V: P= 55 kW, 660 V 690 V: P= 90 kW, max. Rated operating power of three-phase motors 50 - 60 Hz AC-4 220 V 230 V: P= 17 kW, 380 V 400 V: P= 28 kW, 660 V 690 V: P= 43 kW, Contact configuration S = normally open: 2 S, Contact configuration Ö = normally closed: 2 Ö, Notes: Switching elements in accordance with EN 50012., Integrated protective circuit in the control electronics., With mirror contact., Current type AC/DC: AC operation