The 150-SC2NUD Solid-State Smart Motor Controller from the Bulletin 150/SMC-50 series is engineered for robust industrial applications, offering microprocessor-controlled features ideal for starting and operating three-phase squirrel-cage induction and 6-lead Wye-Delta motors. This advanced controller utilizes six silicon controlled rectifiers to seamlessly maintain voltage across its 87 to 260 Amp motor current rating, alongside a control voltage of 200 to 690 Volts AC. Housed in a protective IP65 NEMA Type 4/12 enclosure, the controller supports motor power ratings from 100 to 250 Horsepower, is optimized for temperatures between -5 to 40 degrees Celsius, and is resilient to operational vibrations and shocks, ensuring reliable performance in demanding environments.