Eaton / Westinghouse HLA3400 – 400A 3 Pole Molded Case Circuit Breaker Authentic

Serving as an exact physical match for vintage infrastructure, the 400A HLA3400 maintains critical operations. This Mark 75 L-Frame utilizes thermal-magnetic trip technology for reliable LI protection. The unit mount configuration integrates into classic Westinghouse panelboards and Eaton Pow-R-Line C enclosures. It provides a seamless fit to avoid retrofitting, superseded by the HLD3400 series. Featuring a 75kAIC rating at 240VAC, it delivers robust fault clearing.