Sprecher + Schuh PFS-0251-FBD54W PFS series softstarter for three-phase AC motors. Rated 251A, suitable for motors up to 200 HP @ 460V. Combination fusible disconnect configuration in NEMA Type 4 enclosure. Features adjustable ramp-up/ramp-down times, current limiting, and comprehensive motor protection (overload, phase loss, phase reversal, locked rotor). Integral bypass contactor reduces heat generation during steady-state operation. Meets IEC 60947-4-2, UL 508 Listed and CSA Certified. Ideal for fans, compressors, conveyors, pumps, and general industrial motor starting applications requiring reduced inrush current and mechanical stress.