Trusted Brand Siemens Q140 – 40A 1 Pole Miniature Circuit Breaker

Serving as a dependable solution for residential and light commercial distribution, this 40A single-pole device provides standard 10kAIC thermal-magnetic protection. It snaps securely into Siemens load centers and is fully UL-listed for use in Murray enclosures manufactured after 2002. Electricians frequently utilize this size for dedicated equipment circuits or subpanel feeds. The HACR certification guarantees safe integration with heating and cooling systems across various installations.