The Allen-Bradley 140G-J3X3 is a molded case circuit breaker designed for robust electrical protection in 3-phase power systems, with a voltage rating of 600 Volts AC and a frame current capacity of 250 Amps. Featuring a three-pole construction and a thermal-magnetic trip unit, it effectively provides overcurrent and short-circuit protection with a notable interrupt capacity of 35 kiloAmps at 480 Volts AC. Engineered for versatility, this breaker ensures reliable performance in motor control-circuit transformers and operates efficiently at 80% for continuous loads, while being compatible with cables rated up to 75 degrees Celsius.