455-6456, ABB, ABB B6S-30-01-1.7-71 B6S Contactor, 24 V dc Coil, 3-Pole, 20 A, 4 kW, 3NO, 690 V ac, Brand ABB, Coil Voltage 24 V dc, Number of Poles 3, Contact Voltage Rating 690 V ac ABB B6S-30-01-1.7-71 B6S Contactor, 24 V dc Coil, 3-Pole, 20 A, 4 kW, 3NO, 690 V ac