SQUARE D
SQUARE D QOB215 Miniature Circuit Breaker 15A 2 Pole 120/240V AC
A 15 A, two-pole miniature breaker rated 120/240 V AC and 48 V DC with a 10 kA interrupting capacity for QO load centres
- Reliable 15 A protection for 120/240 V AC circuits
- 10 kA interrupting rating handles high fault currents
- Bolt-on mounting fits Square D QO load centres directly
- Two-pole design controls both legs of single-phase supply
- Operates down to 77 °F for cold environments
Miniature Circuit Breaker 15A 2 Pole
The SQUARE D QOB215 is a miniature circuit breaker rated at 15 A for 120/240 V AC systems. It uses a bolt-on mounting style and fits QO series panelboards. The two-pole design protects a single-phase circuit. A paddle actuator provides manual switching.
Electrical contractors and panel builders
This breaker suits installers fitting or maintaining Square D NQOD panelboards that accept QO series devices. It is not for panels requiring plug-on mounting or a different frame size. Buyers needing a higher interrupting rating or a different pole count should look at other models.
Sustained load behaviour
The device carries its 15 A rating continuously within the listed 77 °F minimum operating temperature. Its 10 kA interrupting capacity at 120/240 V AC handles fault conditions without nuisance tripping. Pressure-plate terminals maintain secure connections under thermal cycling. The compact frame fits standard QO panelboard spacing.
Highlights
- Reliable 15 A protection for 120/240 V AC circuits
- 10 kA interrupting rating handles high fault currents
- Bolt-on mounting fits Square D QO load centres directly
- Two-pole design controls both legs of single-phase supply
- Operates down to 77 °F for cold environments
Specifications
| Brand | SQUARE D |
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Questions about this item
Does this QOB215 breaker require a Square D QO-series panelboard with bolt-on mounting?
Yes, it is designed for Square D NQOD panelboards and uses a bolt-on mounting style with pressure-plate terminals.
Will the 10 kA interrupting rating at 120/240 V AC coordinate with older 15 A single-pole breakers in the same load centre?
The 10 kA AIR rating applies to this two-pole device; coordination with existing single-pole breakers depends on the panelboard’s series rating and should be verified by an electrician.
How can I confirm the breaker is operating correctly after installation?
With the paddle actuator in the ON position, measure 120 V from each pole to neutral and 240 V between poles under load; the breaker should remain closed up to 15 A per pole.
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