Square D Q1B330 – 30A 3 Pole Molded Case Circuit Breaker Reduced Price

Built for commercial applications, the Square D Q1B330 provides 30A of thermal-magnetic protection. This 3-pole breaker features a 10kAIC rating at 240VAC and includes a Visi-Trip indicator for rapid fault identification. Mounting securely via bolt-on connections, this unit installs into legacy Square D NQOB panelboards. Modern replacements require a QOB330 breaker and an SK5668 mounting kit, making this exact-match breaker ideal for a seamless swap. It is HACR rated for HVAC systems.