Allen-Bradley 1492-SPM1D010 is a 1-pole supplementary protector (Bulletin 1492-SPM) from Rockwell Automation, designed for compact overcurrent protection in industrial control panels. It is a 1 A, trip-curve-D miniature circuit breaker with no neutral terminal, rated for 277 V AC and 48 V DC and capable of 10 kA breaking capacity. This model is intended for use as supplementary protection within 1492-series installations, commonly protecting control circuits and small loads in electrical equipment where a compact, plug-in protection device is required.
