Safety contactor for motors and complete devices up to 170 A. Utilisation category: AC-1 for non-inductive or weakly inductive loads and resistance furnaces; AC-3 for squirrel cage motors, including starting and switching off while running; AC-4 for squirrel cage motors, including starting, counter-current braking, reversing, and inching. Connection technology includes screw terminals. Note: Also suitable for motors of efficiency class IE3; IE3-compatible devices are labelled with the logo on the packaging.

Description: This device features two electronically compatible microswitches (1 S + 1 Ö) and an auxiliary switch module permanently connected to the basic device (manual operation not possible).

Rated operating current AC-3 at 380 V and 400 V: Ie = 12 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.

Maximum rated operating power for three-phase motors (50 - 60 Hz) AC-3: 220 V 230 V: P = 3.5 kW; 380 V 400 V: P = 5.5 kW; 660 V 690 V: P = 6.5 kW. Maximum rated operating power for 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.

Contact configuration: S = NO contact: 2 S; NC = NC contact: 3 NC. Notes: Switching elements according to EN 50012, with mirror contact (not for microswitches). Current type: AC/DC, with AC actuation.