The ABB THQB2145 Q line circuit breakers are compact, thermal-magnetic devices designed for residential and commercial applications. These QB breakers are bolt-on versions of the Q Line used for bolting to the bus connections of load centers and lighting panels. They feature Quick-make / Quick-break mechanisms and common trip bars.
Quick-make / Quick-break mechanisms
Common trip bars
Easy to spot trip indication
Suitable for residential, commercial, and industrial systems
Product Highlights
This 45-amp miniature breaker delivers robust overcurrent protection for electrical systems.