Star-delta contactor combination, application: contactor combinations for starting motors in star-delta, switching frequency: max. 30 starts/hour, utilization category: AC-3: squirrel cage motors: starting, switching off during operation, rated operating current AC-3 380 V 400 V: Ie= 30 A, max. rated operating power three-phase motors 50 - 60 Hz AC-3 220 V 230 V: P= 7.5 kW, 380 V 400 V: P= 15 kW, 500 V: P= 18.5 kW, 660 V 690 V: P= 18.5 kW, max. switching time: 20 s, actuating voltage: 110 V 50 Hz, 120 V 60 Hz, current type AC/DC: alternating current actuation, individual components of the mains contactor combination Q11: DILM17-10, + DILA-XHI20, delta contactor Q15: DILM17-01, + DILA-XHI20 type, star contactor Q13: DILM17-01, + DILA-XHI20 type, time relay K1: ETR4-51 type, Note: Also suitable for motors of efficiency class IE3