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., IE3-capable devices are marked with the logo on the packaging., 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 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 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: alternating current operation
| Property | Value |
| Number of normally open contacts as main contacts: | 3 |
| Number of auxiliary contacts as normally closed contacts: | 2 |
| Number of auxiliary contacts as normally open contacts: | 2 |
| Rated operating power at AC-3, 400 V: | 55 kW |
| Rated operating power at AC-4, 400 V: | 28 kW |
| Rated operating current Ie at AC-1, 400 V: | 160 A |
| Rated operating current Ie at AC-3, 400 V: | 115 A |
| Rated operating current Ie at AC-4, 400 V: | 55 A |
| Type of voltage for actuation: | AC |
| Rated control supply voltage Us at AC 50 Hz: | 380 to 440 V |
| Rated control supply voltage Us at AC 60 Hz: | 380 to 440 V |
| Type of connection main circuit: | Screw connection |
| Suitable for series installation: | no |
| Rated operating power NEMA: | 74 kW |
