SQUARE D
SQUARE D QOB130GFI Ground Fault Circuit Breaker 30A 1 Pole 120V AC Bolt On
Provides 30 A ground-fault protection for single-phase 120 V AC circuits in QO load centres and NQ panelboards with a bolt-on paddle actuator
- Ground-fault protection for personnel safety at 30 A
- Bolt-on mounting fits QO and NQ panels without tools
- Single-pole 120 V AC design matches standard residential circuits
- 10 kA interrupting rating clears faults quickly
- Compact 4.1 in by .8 in frame saves panel space
QOB 30 A Ground-Fault Breaker
The Square D QOB130GFI is a single-pole ground-fault circuit interrupter rated 30 amps at 120 volts AC. It mounts by bolting onto compatible QO load centres and NQ panelboards. A 10 kA interrupting rating at 120 V AC provides short-circuit protection alongside ground-fault detection.
Installers needing single-pole ground-fault
Electricians adding ground-fault protection to a single 120-volt branch circuit will find this breaker a direct fit for QO and NQ equipment. Installations that require two-pole or three-pole ground-fault coverage, or a higher ampere rating, cannot use this device. Circuits operating above 120 volts AC or needing DC ratings are also outside its scope.
Bolt-on mounting for QO and NQ panels
The breaker uses a bolt-on connection that secures it to QO load centres and NQ panelboards. Pressure-plate terminals accept the circuit conductors. Physical dimensions are 4.1 inches long, .8 inches wide and 2.9 inches deep within a 100 A frame size.
Highlights
- Ground-fault protection for personnel safety at 30 A
- Bolt-on mounting fits QO and NQ panels without tools
- Single-pole 120 V AC design matches standard residential circuits
- 10 kA interrupting rating clears faults quickly
- Compact 4.1 in by .8 in frame saves panel space
Specifications
| Brand | SQUARE D |
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Questions about this item
Does the 30 A bolt-on GFI breaker have any user-serviceable parts or a replaceable trip element?
The QOB130GFI is a sealed miniature circuit breaker with no user-serviceable components; the ground-fault trip mechanism and pressure-plate terminals are factory-assembled and not field-replaceable.
At 120 V AC, what is the maximum fault current the 30 A QOB breaker can interrupt before it must be replaced?
The breaker carries a 10 kA AIR rating at 120 V AC, so it is tested to clear faults up to 10 000 amperes; any event exceeding that level would require replacement.
How warm does the 0.8 in wide QOB130GFI run when carrying 30 A continuously in a QO load center?
The 100 A frame and pressure-plate terminals are designed to operate within UL temperature-rise limits at full 30 A load; normal panel ventilation keeps the 4.1 in long body at acceptable temperatures during all-day operation.
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