Siemens manufactures the three commonly used electromechanical reduced voltage starters. Each one is designed for specific application requirements. Siemens Combination Motor Starter, 2-Step Part Winding Heavy Duty Reduced Voltage, 460 VAC, 135 A, 60 Hz Frequency, 22 W Wattage, 150 HP at 460/480 VAC Motor, 380 to 440 VAC at 50 Hz, 440 to 480 VAC at 60 Hz Coil, 18 to 34 ms On/10 to 12 ms Off Timing, Automatic/Manual/Remote Reset, 3 ph, Box Lug/Screw Terminal Connection, Solid-State Overload Relay, 50 to 200 A Full Load, 10 A at 600 VAC, 5 A at 600 VDC Auxiliary, NEMA 1 Enclosure, 5000000 Cycles Operating Cycles, 104 °F Operating, 28 in W x 11 in D x 55 in H Dimensions