Siemens 3RT2028-1AK60 Power Contactor

Siemens 3RT2028-1AK60 is a Sirius line three-pole power contactor designed for AC-3e motor-control duty, delivering a continuous current rating of 38 A and an 18.5 kW load rating at 400 V. This 3-pole device includes one auxiliary contact (1 NO + 1 NC) and uses screw-terminal connections, fitting the S0 size footprint for straightforward panel wiring. The coil operates at 110 V AC (50/60 Hz), enabling control from standard industrial control circuits, and it is suitable for 3-phase systems up to 400 V, making it a common choice for starting and stopping motors in automation equipment. As part of the Siemens Sirius 3RT motor-control family, the 3RT2028-1AK60 provides a compact, reliable interface within control cabinets and motor-control assemblies, ready to pair with compatible accessories for signaling and interlock functions.