The Allen-Bradley 150-C9NBD SMC-3 Open Smart Motor Controller is a 3‑wire, open‑type controller for 3‑phase motors up to 9 A on a 480 V, 60 Hz supply. It is a line-connected controller with a control input of 100–240 V AC, an open enclosure, and a normally open fault contact. Rated for 50/60 Hz operation and a starting duty of 350%, it is designed to provide reliable motor starting and basic protection in compact industrial installations. Model 150-C9NBD is part of Rockwell Automation’s SMC‑3 family, intended for applications requiring a simple, open‑type smart motor controller for 3‑phase motors.
