The Allen‑Bradley DK3350 three‑phase molded‑case circuit breaker delivers 350 A protection for three‑pole circuits in industrial power panels. It uses a thermal‑magnetic trip unit with a non‑interchangeable mechanism and provides line‑ and load‑side lug terminals that accept aluminum or copper conductors for through‑panel installation. Rated for 240 V AC (250 V DC) and offering an interrupting capacity of 65 kA at 240 V, the DK3350 is a rugged choice for protecting heavy motor feeders and other high‑current loads in demanding industrial environments; it is part of the Cutler‑Hammer/Eaton DK family.
