Cutler-Hammer JT3150T U Three-Phase Circuit Breaker

The Cutler-Hammer JT3150T U three-phase circuit breaker is a 3-pole protective device rated for 150 A and 600 V, designed to interrupt current in three-phase power systems when faults or overloads occur. This 150 A, 600 V breaker provides overcurrent protection for downstream circuits in industrial and commercial electrical installations, helping prevent wiring damage and equipment failures. Suitable for use in panelboards and distribution configurations where three-phase power is distributed to motors, transformers, or other heavy loads, the JT3150T U is configured to disconnect all three phases under fault conditions. With a 600 V rating, it supports systems up to that voltage, ensuring safe de-energization across the three-phase feeders.