Square D MA31000 - 1000A 3 Pole Molded Case Circuit Breaker

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Engineered for heavy-duty commercial applications, this 1000A molded case circuit breaker delivers robust thermal-magnetic protection. It features fixed thermal and adjustable magn etic trip settings for precise system coordination. Designed with an I-Line mounting style, it integrates seamlessly into Square D I-Line panelboards. It provides an exact fit for existing infrastructure and is replaced by the PGA361000. Rated for 42kAIC at 240VAC, it includes a Visi-Trip indicator. Show more