The Allen-Bradley 1492-CB3H030 is a three-pole, DIN-rail‑mount miniature circuit breaker with H-Trip protection, designed for protecting motors and other highly inductive loads in control panels. It is rated for 3 A and 277 VAC, with a magnetic H-Trip suitable for inductive startups, and is listed as Series B with a 480Y/277V AC 3‑Phase or 65 V DC operating voltage (max motor rating up to 5 HP). This specific model has been discontinued by the manufacturer on November 30, 2007, so current availability comes from surplus or distributors.
