The Allen-Bradley 150-SD3NUR SMC-50 Smart Motor Controller is expertly designed for robust control of 3-phase squirrel-cage induction motors, offering 520A operational current with a commendable voltage range of 200 to 690V AC, suitable for applications between 200 to 500 horsepower. Featuring cutting-edge microprocessor and SCR-based controlled start-up, this solid-state controller provides nine selectable start modes and includes a built-in electronic motor overload protection. The controller is equipped with expansion ports for optional module installation, offers a durable 24V DC control circuit, and resilient relay outputs, backed by reliable thermal magnetic circuit breakers with a performance rating of 30/18KA and Class K5 fuse versatility. The device operates efficiently within a temperature range of 40 to 65 ºC, maintains performance without derating at altitudes up to 2000m, and is housed in a robust NEMA Open Type Enclosure, weighing 77.1kg.
