Siemens 3VU1600-1MQ00 Motor Protection Circuit Breaker

Siemens 3VU1600-1MQ00 is a motor protection circuit breaker (MPCB) designed for motor and plant protection in industrial control panels. It is a size 52/63A device with screw-terminal connections and an auxiliary contact set configured as 1 normally open + 1 normally closed, enabling signaling to control circuits. The overload protection is adjustable from 28 to 40 A, paired with a 480 A instantaneous overcurrent release, providing coordinated protection for motor feeders against both overload and short-circuit events. This unit is specifically described as a motor and plant protection breaker, reinforcing its role in safeguarding motors, pumps, and fans within three-phase electrical systems.