The Gould JJ3-B industrial circuit breaker is a 400 A protection device designed for 600 V AC service, built on the JJ frame family. It offers a DC rating of 125–250 VDC, enabling protection of both AC and DC circuits within the same installation. As part of the I-T-E lineage, the JJ3-B provides rugged, reliable overcurrent protection for industrial electrical systems that require high-capacity circuit protection.
