Cutler-Hammer DK3400W U molded case circuit breaker is a three-pole protective device rated for 400 A at 600 V, designed for use in electrical distribution panels and feeder applications. As a molded case circuit breaker, it interrupts fault currents to protect conductors and equipment from overloads and short circuits. This 400 A, 600 V, 3P unit provides compact, rugged protection for industrial or commercial power distribution where reliable branch-circuit protection is required.
