SQUARE D
SQUARE D QOU125 Miniature Circuit Breaker QO Series 25A 1 Pole 120/240V AC
Provides 25 A single-pole circuit protection at 120/240 V AC with 10 kA interrupting rating for QO load centres
- 25 A protection for single-phase AC circuits
- 10 kA interrupting capacity at 120/240 V AC
- Toggle actuator for clear on/off indication
- Slotted box lug accepts reversible line and load wiring
- Mounts on surface or DIN rail for flexible installation
QO Series 25 A Single-Pole Breaker
This Square D QOU125 miniature circuit breaker carries a 25 A rating and a 120/240 V AC voltage rating with a 10 kA interrupting capacity. It fits QO-series panelboards and load centres using a surface or DIN-rail mounting style. The toggle actuator provides clear on-off indication for single-phase circuits.
Suits standard 25 A branch circuits
It serves air-conditioning, refrigeration and heating equipment on a 25 A single-pole branch. Installations that require a two-pole breaker, a higher ampere rating, or a different panelboard series should select another device. The reversible slotted box lug accepts line or load conductors in either orientation.
10 kA AIR at 120/240 V AC
The 10 kA maximum ampere interrupting rating at 120/240 V AC determines whether the breaker can safely clear a fault on the supply side. Verify that the available fault current at the installation point does not exceed this value before specifying the QOU125.
Highlights
- 25 A protection for single-phase AC circuits
- 10 kA interrupting capacity at 120/240 V AC
- Toggle actuator for clear on/off indication
- Slotted box lug accepts reversible line and load wiring
- Mounts on surface or DIN rail for flexible installation
Specifications
| Brand | SQUARE D |
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Questions about this item
Can the QOU125 breaker share a QO load center with other single-pole QO breakers?
Yes, it is a 1-pole standard QO-series breaker rated 25 A at 120/240 V AC and mounts on the same DIN-rail or surface bus as other QO units.
How do I verify the breaker is operating correctly after installation?
Switch the toggle to ON; the handle should stay firmly latched. Measure 120 V or 240 V AC across the load terminal with a multimeter to confirm continuity.
What comes in the box and what must I supply?
The breaker itself with its slotted reversible box lug terminals is included; mounting rail, panel enclosure, and wire are not supplied.
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