Power contactor, Application: Power contactor for motors, Power contactors up to 170 A, 3-pole, 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: Not suitable for motors of efficiency class IE3., Poles: 3-pole, Rated operating current AC-3 380 V 400 V: Ie= 15.5 A, Rated operating current AC-1 conventional thermal current, 3-pole, 50 - 60 Hz open at 40 °C: Ith = Ie= 22 A, encapsulated: Ith= 18 A, Rated operating current AC-1 conventional thermal current 1-pole open: Ith= 50 A, encapsulated: Ith= 45 A, max. rated operating power three-phase motors 50 - 60 Hz AC-3 220 V 230 V: P= 4 kW, 380 V 400 V: P= 7.5 kW, 660 V 690 V: P= 7 kW, max. rated operating power three-phase motors 50 - 60 Hz AC-4 220 V 230 V: P= 2 kW, 380 V 400 V: P= 3 kW, 660 V 690 V: P= 4.4 kW, can be combined with auxiliary switch: DILA-XHI(V).., contact configuration Ö = break contact: 1 Ö, notes: switching elements according to EN 50012, integrated varistor protective circuit, with mirror contact, current type AC/DC: direct current operation