Square D QO125 Miniature Circuit Breaker

No, QO and Homeline breakers are not interchangeable. The QO series uses a 3/4-inch width format per pole, while Homeline panels require a 1-inch format.

Yes. Square D NQOD panelboards are designed to accept both plug-on QO breakers like the QO125, as well as bolt-on QOB branch breakers.

Standard residential branch circuits for lighting and receptacles are usually 15A or 20A. A 25A single-pole breaker is typically reserved for dedicated equipment loads such as specific well pumps, shop equipment, or small air conditioning units operating on 120V circuits.

Yes, this breaker features the Square D Visi-Trip indicator. When the breaker trips, a red flag appears in the viewing window, allowing you to instantly identify the faulted circuit in a crowded panel.

Yes, the pressure plate terminals are rated to accept 14 to 8 AWG aluminum or copper wire. When using aluminum conductors, applying an approved anti-oxidant joint compound is standard industry practice.

Terminal torque specifications vary based on the exact wire size and material used. Always consult the label printed directly on the side of the breaker to ensure safe and code-compliant termination.

Yes, if your system requires a higher fault current rating. The standard QO125 is rated for 10kAIC at 120/240VAC, whereas the QO125VH is physically identical but carries a higher 22kAIC interrupting rating.