Last Chance Square D Q1B240 – 40A 2 Pole Molded Case Circuit Breaker

Serving commercial and industrial applications, the Q1B240 delivers 40 amps of thermal-magnetic protection. This two-pole unit integrates into legacy Square D NQOB panelboards to manage standard electrical loads. Installation requires bolt-on connections to secure the breaker within the chassis. For modern upgrades, it can be substituted with a QOB240 using an SK5668 mounting kit. Equipped with Visi-Trip technology, users can quickly identify tripped circuits during maintenance.