Allen-Bradley 1492-CB1H500 Circuit Breaker

Allen-Bradley 1492-CB1H500 is a one-pole energy-limiting miniature circuit breaker from Rockwell Automation’s 1492 family, designed to protect control circuits and small motors in industrial panels. The 50 A-rated device provides overcurrent protection for circuits up to 277 VAC and supports DC applications up to 65 VDC, making it suitable for mixed AC/DC control panels. It is an open-style breaker that mounts on DIN rails, aligning with other 1492-series components for streamlined panel builds. This CB1H500 variant represents the 50-amp rating within the CB1H subfamily and comes in a compact 1-pole form factor ideal for space-constrained installations. Used in applications such as machine controls, conveyors, and feeder protection in industrial automation, it helps limit fault energy and ensure rapid disconnection when faults occur. The 1492-CB1H family is part of Allen-Bradley’s legacy line of energy-limiting breakers, compatible with standard 1492 accessories and mounting schemes for dependable protection in rugged industrial environments.