Eaton DK3350 Three Phase Molded Case Circuit Breaker

The Eaton Cutler-Hammer DK3350 is a three-pole, 350 A molded‑case circuit breaker designed for 240 V three‑phase power distribution, pairing the DK family form factor with molded‑case technology in an industrial‑grade protective device intended for use in electrical panels and distribution gear across commercial and light industrial settings. Built to fit standard DK enclosures, it provides overcurrent protection for feeders and equipment within panelboards and distribution assemblies in applications where three‑phase 240 V circuits require up to 350 A. The DK3350 designation includes the DK 65K specification, identifying its placement in Eaton’s DK series and its configuration—three‑phase, 240 V, 350 A—for ordering, maintenance, and compatibility within electrical distribution systems.