Allen-Bradley 1492-SPM2C005 2-Pole Circuit Breaker

Allen-Bradley 1492-SPM2C005 is a two-pole supplementary circuit breaker in the 1492-SPM family, designed to provide targeted protection for low-current control circuits within electrical panels. With a 0.5-ampere rating and a maximum operating voltage of 277 VAC, this 2-pole unit protects two conductors while delivering predictable trip behavior via a C-type trip curve. It is specified as having no neutral pole, making it suitable for circuits that do not require a neutral protection path. As a supplemental protector, it is used alongside standard protection devices to isolate faults and prevent damage to sensitive control hardware. The catalog number 1492-SPM2C005 reflects a Bulletin 1492-SPM supplemental circuit breaker, 2-pole configuration, and C-curve characteristics. This device is part of Rockwell Automation's Allen-Bradley line and is intended for applications in industrial control panels, automation systems, and equipment assemblies where compact, secondary overcurrent protection is required for two hot conductors. When selecting a spare or replacement, verify that the voltage rating of 277 VAC and the 0.5 A trip setting match the protected circuit requirements, and confirm that a 2-pole, no-neutral configuration aligns with the installed protection scheme.