Low Price Zinsco QCB30 – 30A 2 Pole Molded Case Circuit Breaker

Maintaining legacy electrical systems requires exact-fit components like the Zinsco QCB30. This 30A, two-pole molded case circuit breaker provides reliable overcurrent defense for commercial and industrial environments. Designed with a robust bolt-on connection, it installs into vintage Zinsco panelboards seamlessly. For modern retrofits, this specific breaker is frequently replaced by the UBIZ230B equivalent. The thermal-magnetic trip unit offers a 10 kAIC interrupt capacity at 120/240VAC.