Square D QOB340 – 40A 3 Pole Miniature Circuit Breaker Popular
Original price was: $80.79.$42.01Current price is: $42.01.
Built for commercial and industrial applications, the Square D QOB340 is a 40-amp, three-pole miniature circuit breaker. It provides dependable thermal-magnetic protection for standard branch circuits. This device utilizes a bolt-on mounting configuration, ensuring a secure connection within NQ and NQOD series panelboards. Rated at 10kAIC for 120/240V AC systems, it is HACR rated for HVAC equipment. The integrated Visi-Trip indicator simplifies troubleshooting by clearly showing tripped status.





