Power contactor, AC-3 40 A, 18.5 kW / 400 V 110 V AC, 60 Hz, 3-pole, Size S2, 2 NO + 2 NC, Main circuit: Screw terminal Auxiliary circuit: Spring-type terminal !!! Phased-out product !!! Successor is SIRIUS 3RT2 Simple, efficient and always up to date - SIRIUS modular system