Allen-Bradley 1492-SP1C200 Circuit Breaker

Allen-Bradley 1492-SP1C200 is a 1-pole supplementary circuit breaker from Rockwell Automation’s 1492-SP family, designed to protect individual control circuits inside electrical panels. It is rated for 20 A and for AC operation up to 240/415 V, using a Trip Curve C to provide consistent short-circuit and overcurrent protection for circuits with modest inrush, such as relays, contactors, and PLC I/O modules. The 1492-SP1C200 designation identifies a No-Neutral variant of the SP1C200 line, intended for single‑phase control circuits where a neutral conductor is not required in the protector. In panel installations, it serves as local protection and enables safer fault isolation for the devices it guards, without carrying the full load of the main power feeder. This device is manufactured by Allen-Bradley, a Rockwell Automation brand, and is commonly specified for control panels in automation and industrial equipment where compact, dependable overcurrent protection of a single circuit is needed. Typical applications include protecting individual control circuits feeding small motors, timers, sensors, and logic modules, as part of a broader machine control system.