Direct From Factory ABB / General Electric TB43400AF14 – 400A 3 Pole Molded Case Circuit Breaker

Part of GE’s Tri-Break line, the TB43400AF14 is a 400A, 3-pole molded case circuit breaker engineered for demanding industrial environments. It delivers robust overcurrent protection for heavy-duty electrical systems. This bolt-on MCCB installs into compatible GE switchboards and motor control centers. Built on the TB4 frame, it features a thermal-magnetic trip unit with adjustable magnetic settings. With a 200 kAIC rating at 600VAC, this current-limiting breaker utilizes internal fuses.