Eaton KW3400F Molded Case Circuit Breaker 3-Phase

The Eaton KW3400F is a Cutler Hammer C Series molded case circuit breaker with a three-pole (3P) configuration, rated for 400 amperes at up to 600 volts. This molded case circuit breaker provides overcurrent protection for three-phase electrical circuits and is part of Eaton’s KW3400F family within the C Series lineup. The KW3400F designation identifies the specific model and rating, guiding proper selection and integration in electrical distribution schemes. With its molded case construction, this device offers a compact, enclosed form factor suitable for protection in systems that operate at 3-phase power and require a 400 A, 600 V rating. The combination of 3P operation and the 400 A/600 V rating defines its suitability for higher-current, low-to-medium voltage three-phase circuits where reliable interrupting capability is needed.