Challenger CH3040 Three Phase Circuit Breaker 480V

Challenger CH3040 is a three-pole molded-case circuit breaker rated for 40 amps at 480 volts, built to interrupt fault currents on three-phase feeders. As part of Challenger’s CH family, the unit combines a compact molded enclosure with a three-pole configuration to protect 480V three-phase circuits from overloads and short circuits. The CH3040’s 40A rating makes it suitable for branch-circuit protection in distribution panels where 3-phase power is present, helping to isolate faults and safeguard wiring and downstream equipment. Typical applications include protecting industrial or commercial feeders that supply 3-phase motors, compressors, pumps, cooling systems, and other equipment operated at or near 480V, as part of a broader power-distribution or control-panel installation. This model’s balanced combination of rating, voltage, and pole count places it in the standard class of molded-case breakers used to define safe operating margins in mid-range, 3-phase electrical systems.