Allen-Bradley 154-A11NB Industrial Control Module

Allen-Bradley 154-A11NB is a starting torque controller (STC) engineered to optimize the start-up characteristics of small industrial AC motors. As part of the Bulletin 154 STC family, the 154-A11NB provides controlled torque for both single‑phase and three‑phase squirrel-cage induction motors, helping to limit inrush current and smooth acceleration during motor start. It is commonly deployed in applications such as conveyors, fans, pumps, and other equipment where a gentle, reliable motor start is important, and is designed for low‑horsepower motor drives within the Allen‑Bradley/Rockwell Automation ecosystem. Distributors and catalogs describe the 154‑A11NB as a compact STC suitable for integration with compatible control circuits to achieve dependable start torque control in industrial environments.