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, tapping, Connection technology: Screw terminals, Note: Also suitable for motors of efficiency class IE3, Rated operating current AC-3 380 V 400 V: Ie = 150 A, Rated operating current AC-1 conventional thermal current, 3-pole, 50 - 60 Hz open at 40 °C: Ith = Ie = 190 A, encapsulated: Ith = 144 A, Rated operating current AC-1 conventional thermal current 1-pole open: Ith = 400 A, encapsulated: Ith = 360 A, max. Rated operating power of three-phase motors 50 - 60 Hz AC-3 220 V 230 V: P= 48 kW, 380 V 400 V: P= 75 kW, 660 V 690 V: P= 96 kW, max. Rated operating power of three-phase motors 50 - 60 Hz AC-4 220 V 230 V: P= 20 kW, 380 V 400 V: P= 33 kW, 660 V 690 V: P= 48 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: direct current operation