Mega Sale Square D QOB3451021 – 45A 3 Pole Miniature Circuit Breaker

Engineered for commercial applications, the Square D QOB3451021 delivers 45A of reliable thermal-magnetic protection. This 3-pole miniature circuit breaker handles demanding electrical distribution needs. This device installs into Square D NQ and NQOD panelboards. The bolted connection ensures stable performance in environments subject to vibration. It features a factory-installed 120/208/240V AC shunt trip for remote tripping, plus the Visi-Trip indicator for quick status identification.