The ALLEN BRADLEY 150-F317NBR is a solid-state soft starter and smart motor controller with a 317 AMP capacity, designed for 250 HP motors. It features an open enclosure design, operates at 200-460 VAC input line voltage for 3-phase systems, and supports both 50/60 Hz frequencies. The unit utilizes 24 VAC/DC control voltage and comes with a standard configuration. This product includes a 2-year warranty from RADWELL (factory warranty not applicable).