Industrial CJ3250F U Molded Case Circuit Breaker

Challenger CJ3250F U molded‑case circuit breaker is a 3‑pole, 250 A device rated for 600 V, built to protect large industrial feeders and motor circuits in three‑phase power systems. As part of the CJ Series, it provides robust overload and short‑circuit protection within industrial control panels and switchgear, offering a high interrupting capacity of 35 kA at 480 V to handle fault currents in demanding installations. The CJ3250F U is designed for general industrial environments with operation up to 40°C ambient, enabling reliable performance in typical facility electrical rooms. Common applications include protection of feeders to motors, HVAC equipment, and distribution circuits within commercial and industrial facilities where compact MCCB form factors are preferred. This model’s 250 A rating and 600 V capacity position it as a strong option for mid‑sized, high‑demand three‑phase circuits, aligning with standard MCCB compatibility in CJ‑series installations. It is designed for integration into existing panels and switchgear footprints that accept CJ‑series breakers, helping maintain consistent protection across upgrade projects.