Challenger GD324NF U Molded Case Circuit Breaker

Challenger GD324NF U is a molded‑case circuit breaker rated for 200 A at 240 V, configured as a three‑pole, three‑phase device with a nonfused (NonF) design. The GD324NF U model designation identifies this Challenger MCCB as a specific, three‑phase protective device in low‑voltage distribution panels. It is intended to protect three‑phase feeders and connected loads on a 240‑volt system by interrupting fault currents and overloads to prevent damage to conductors and equipment. With a 200 A rating, it supports medium‑scale branch circuits typical of commercial or light industrial installations that require robust, point‑of‑use protection for three‑phase equipment and motors operating at 240 V. Before installation or replacement, verify that your panel is designed to accept Challenger molded‑case breakers and confirm that the termination and mounting style match the enclosure requirements.