Square D QO250VH Miniature Circuit Breaker

The standard QO250 has a 10kA short circuit current rating, while the QO250VH features a higher 22kA interrupting rating for applications requiring greater fault current protection. Both share the same physical dimensions and plug-on footprint.

No. Square D QO breakers have a specific plug-on clip design that is not compatible with Homeline load centers. You must use HOM series breakers for Homeline panels.

Yes, the box lugs on this breaker are dual-rated for both copper (Cu) and aluminum (Al) conductors. When using aluminum wire, ensure you apply a listed joint compound (anti-oxidant) to the stripped conductors before terminating them in the lugs.

In Square D's QO series nomenclature, the "VH" designates a high-interrupting rating of 22,000 Amps (22kAIC) at 120/240V. This is significantly higher than the standard QO250, which has a 10kAIC rating, making the VH version suitable for commercial or residential applications located closer to the utility transformer where available fault current is higher.

Yes, the QO250VH is designed to plug into both residential QO load centers and commercial NQ panelboards. When installing in an NQ panelboard, ensure the panel's short-circuit current rating (SCCR) is equal to or less than the breaker's 22kAIC rating, or that it is part of a series-rated system.

Yes, this breaker features Square D's Visi-Trip technology. When the breaker trips due to an overcurrent or short circuit condition, a highly visible red indicator appears in the window, making it easy to identify the tripped breaker in a crowded panel.

The bolt-on equivalent is the QOB250VH. It shares the same 50A rating, 22kAIC interrupting capacity, and thermal-magnetic trip curve, but features a bolt-on mounting bracket designed specifically for NQ and legacy NQOD panelboards.

Yes, this breaker is HACR rated. It is suitable for use with group motor applications like HVAC systems, provided the equipment nameplate specifies a maximum overcurrent protection device (MOCP) of 50 Amps.

Yes, a 2-pole QO breaker can be installed in a 3-phase panelboard to supply a single-phase load across two phases (such as a 208V or 240V circuit). However, it will only occupy two of the three available phase buses.

When the breaker trips, the handle moves to a center position and the Visi-Trip indicator appears. To restore power, you must first push the handle firmly to the fully OFF position to reset the internal mechanism, and then push it back to the ON position.