Federal Pacific HFJ434100 – 100A 3 Pole Molded Case Circuit Breaker Place Order

The HFJ434100 is a 100A, three-pole molded case circuit breaker from Federal Pacific’s legacy H-Frame series. It delivers reliable thermal-magnetic protection for commercial three-phase systems. This bolt-on MCCB installs into existing Federal Pacific panels. It serves as an exact drop-in replacement for the discontinued NFJ434100, allowing facilities to maintain aging infrastructure without costly panel upgrades. Rated 65kAIC at 240V and 22kAIC at 480V, it features fixed LI trip functions.