Allen-Bradley SMC-3 Soft Starter, model 150-C60NBR, is a three‑phase, open‑enclosure smart motor controller designed to provide controlled starting and stopping for standard induction motors. It supports line‑connected motors up to 7.5–20 HP at 230 V, 60 Hz, three‑phase, and uses 24 V AC/DC control power with selectable soft stop (Off, 100%, 200%, or 300% of the start time when wired). It operates in temperatures from -5 to 50 °C and accepts line‑power conductors sized 2.5–95 mm² on the power terminals, making it suitable for compact industrial installations as part of the SMC‑3 family (3‑wire configuration).
