Square D QOB240 – 40A 2 Pole Miniature Circuit Breaker While Supplies Last

Part of the proven QO family, this 40A miniature circuit breaker is engineered for reliable performance in commercial and industrial power distribution. The 2-pole device features a bolt-on mounting configuration, ensuring a tight, vibration-resistant connection within Square D NQ and NQOD panelboards. Rated at 10kAIC for 120/240VAC systems, the QOB240 includes a Visi-Trip red indicator flag to simplify maintenance and reduce downtime during electrical faults.