ITE HJ3-F400 Three Pole Molded Case Circuit Breaker

ITE HJ3-F400 is a three-pole molded case circuit breaker (MCCB) designed to provide overcurrent protection for three‑phase electrical circuits. It carries a 400 amp current rating and has a 225 trip specification, enabling it to interrupt fault currents in distribution panels when preset limits are exceeded. This model is used in industrial and commercial power-distribution settings to protect feeders and panelboards from overloads and short circuits. The HJ3-F400 designation identifies the specific device in ITE's MCCB lineup, and the three-pole configuration supports protection across all three phases in a single package. In panel installations where reliable three‑phase protection is required, this breaker serves as a main or feeder protection device, coordinating with other protective elements in the system.