Challenger CE3040 Molded Case Circuit Breaker

The Challenger CE3040 Molded Case Circuit Breaker is a 3-pole, 40-amp protective device intended for 3-phase power distribution in commercial and industrial settings. This molded-case breaker is rated for up to 480V AC and offers a short-circuit interruption capacity of 14 kA at 480V, supporting reliable protection for feeders and motors in demanding environments. It employs a thermal-magnetic trip mechanism with distinct long-time and instantaneous trip functions and ships with a non-interchangeable trip unit, ensuring consistent performance in the field. The CE3040 is designed for bolt-on mounting and provides load-side lug terminals for secure wiring in compatible panels. As part of Challenger's CE series, this unit is built for compact, modular protection in installations requiring a fixed-trip, 40A three-pole breaker. Typical applications include protecting 3‑phase feeders or equipment loads in commercial or light-industrial electrical systems where a 40A rating matches the circuit's electrical demand. Compatible with standard Challenger/Cutler-Hammer panels and CE-series enclosures that accept molded-case breakers.