Siemens 3RT2037-1AK60 Power Contactor 3RT2037-1AK60

The Siemens 3RT2037-1AK60 is a three-pole power contactor from the SIRIUS 3RT2 family, designed for AC-3 duty to switch three-phase motors. It provides a main circuit rating of 65 A and up to 30 kW at 400 V, with a maximum main-circuit voltage of 690 V, making it suitable for common industrial motor loads. The coil is rated 110 V AC (50/60 Hz), allowing reliable actuation from standard control circuits, and the unit includes one normally open and one normally closed auxiliary contact for signaling or interlocking. Terminals are screw-type for both main and auxiliary connections, and the device is the compact Size S2 form factor. Typical uses include starting and stopping three-phase motors in pumps, conveyors, fans, and other equipment where simple direct switching is adequate and no soft-start is required.