Schneider Electric QOB350 Bolt On Circuit Breaker

Schneider Electric QOB350 is a three-pole, bolt-on miniature circuit breaker rated at 50 A and 240 VAC, with a 10 kA interrupting rating. It is part of the QOB bolt-on family designed for use in Square D NQ panelboards, delivering thermal-magnetic overcurrent protection for 3-phase circuits in a three-space, three-pole footprint. As a bolt-on alternative to plug-on QO breakers, the QOB350 mounts directly into the panel interior via bolt-on hardware and, on many QOB models, includes the Visi-Trip indicator for fast fault identification when tripped. This model is intended for protecting higher-current 240 VAC branch circuits in commercial or industrial panel installations that require bolt-on mounting.