NIB – Eaton – QBGFEP2050 – Eaton Qb Gfci Circuit Breaker, 50A, Bolt-On Mounting Catalog Number: QBGFEP2050. The Eaton QB GFCI circuit breaker is a Ground Fault Circuit Interrupter with a 50A capacity and Bolt-on mounting. Circuit Breaker Type: Ground fault circuit breaker. Trip Type: Non-Interchangeable. byJuly 4, 2026