Mitsubishi S-T50-AC400V Magnetic Contactor for Motor Control

The Mitsubishi S-T50-AC400V (S-T50-AC400V) is an industrial contactor designed for motor control, power switching, and electrical distribution in automated machinery and industrial control panels. Engineered by Mitsubishi Electric, this contactor unit provides dependable electrical isolation, circuit switching, and equipment protection within factory automation environments requiring a 400V AC rated control supply. Built to withstand demanding industrial duties, the contactor plays a critical role in starting, stopping, and regulating electric motors, pumps, fans, and heavy production equipment. It integrates seamlessly into standard motor control centers and industrial enclosures alongside compatible motor protection devices and circuit breakers. With a recorded unit weight of 10 kg, its robust construction provides high mechanical durability, reliable contact engagement, and stable operation across demanding operating cycles. The unit is suited for maintenance replacement and scheduled overhaul across industrial manufacturing facilities, assembly lines, and commercial processing systems where exact specification matching is essential.