Siemens 3RT2038-1AC20 Power Contactor

Siemens 3RT2038-1AC20 is a three-pole power contactor from the SIRIUS 3RT2 family, built for AC-3e/AC-3 motor control and rated up to 80 A and 37 kW at 400 V, with rugged screw-terminal wiring and a compact footprint. The coil is 24 V AC, 50/60 Hz, enabling control from standard industrial control circuits. It includes one normally open and one normally closed auxiliary contact for control logic and status feedback. It is designed for compact installation in industrial panels and is suitable for motors such as conveyors, pumps, and machine tools in manufacturing lines. The AC-3 duty rating confirms suitability for switching motor loads in general industry, and the unit can be paired with Siemens auxiliary blocks to extend control options. This model’s combination of high current capacity, solid mechanical construction, and standard wiring makes it a common choice for new installations or replacements in motor-control cabinets.