Challenger C390 Molded Case Circuit Breaker MCCB is a 3-pole, 90 A protective device rated for 120/240 V AC. As part of Challenger's legacy C-series MCCBs, it is intended for use in panels that accept Challenger C-type breakers, providing overcurrent protection for feeders and branch circuits in commercial installations. With a 120/240 V AC rating and a 3-pole configuration, the C390 is suited for standard North American distribution applications where Challenger C-series MCCBs are specified.
