NIB – Square D – QOB1201021 – Miniature Circuit Breaker, Qo, 20A, 1 Pole This miniature circuit breaker from Schneider Electric's QO range is rated at 20A and supports 120/240VAC. It is a bolt-on type circuit breaker with a shunt trip feature and is UL Listed and CSA certified. byJuly 3, 2026
