Siemens 3RT2028-1AP60 Three-Phase Power Contactor

Siemens 3RT2028-1AP60 is a compact, three-pole power contactor from the Sirius 3RT2 family, rated for AC-3e/AC-3 motor loads up to 38 A and 18.5 kW at 400 V, with insulation voltage up to 690 V. It operates from a 220 V AC coil at 50 Hz (or 240 V AC at 60 Hz), enabling reliable motor control across common European and North American mains configurations. The unit features a size S0 frame with screw-terminal connections and includes one normally open and one normally closed auxiliary contact to support interlocking and status signaling. With a 3-pole main contact arrangement and robust coil isolation, it’s well suited for starting and stopping motors such as pumps, fans, conveyors, and other industrial equipment, especially where compact form factor and easy field wiring are priorities.