Square D QOB245U is a two‑pole molded‑case circuit breaker from Schneider Electric’s QOB family. Rated for 45 A and 120/240 VAC, it uses a thermal‑magnetic trip and is bolt‑on mounted for QOB‑type breakers used in Square D QO panels. With a 10 kA interrupt rating (10,000 AIC), it protects branch circuits from overloads and short circuits in residential and light commercial applications. Compatible with QO load centers that accept QOB breakers, this unit provides a code‑compliant solution for distributing and protecting feeders and branch circuits in standard electrical panels.
