Allen-Bradley 150-C25NBD Control Unit

The Allen‑Bradley 150‑C25NBD is a 3‑wire open‑type soft starter (SMC‑3) designed to start 3‑phase motors with reduced voltage. It is rated for up to 25 A (current range 8.3–25 A) and accepts 3‑phase input voltages from 200 to 480 VAC at 50/60 Hz, with a control circuit that operates on 100–240 VAC. This open‑type unit is intended for panel mounting and wiring access, offering straightforward integration where a compact motor‑start solution is required. Suitable for motors up to 480 V, the 150‑C25NBD supports typical applications such as conveyors, fans, and pumps, delivering controlled ramp‑ups and safer inrush management through soft‑start operation. As part of Allen‑Bradley’s SMC‑3 line, it uses a simplified 3‑wire configuration while providing reliable soft‑start capability for medium‑size loads.