Circuit breaker compatibility with Square D panels depends entirely on the specific product series of the panel. For Square D QO panels, only official Square D QO circuit breakers are approved, tested, and UL-listed to fit. For Square D Homeline panels, only official Square D Homeline breakers are compatible. Mixing brands or installing unauthorized third-party breakers violates electrical codes, ruins the panel's UL listing, and creates severe safety hazards.
1 votes
Marked as accepted