Allen-Bradley 1492-SP3C250 is a three-pole supplementary circuit breaker from the 1492-SP family, rated for 25 A. It provides overcurrent protection for three-phase circuits and uses Trip Curve C characteristics for short-circuit and overload protection. This model is the standard 3P, no-neutral configuration; a neutral-equipped variant exists as 1492-SP3C250-N. Used as a supplemental protective device in industrial control and power distribution where three-phase protection is required.
