GE
GE THQB2190 Miniature Circuit Breaker 90A 2 Pole 120/240V AC
Miniature circuit breaker rated 90 A, two-pole, 120/240 V AC with 10 kA interrupting capacity, bolt-on mounting for lighting panels and load centres
- 90 A rating handles heavy residential loads
- 2-pole design protects both legs of 120/240 V AC service
- 10 kA interrupting capacity clears faults safely
- Bolt-on mounting fits GE THQB load centers securely
- UL Listed for code-compliant installations
GE THQB2190 90A 2-Pole Circuit Breaker
The GE THQB2190 is a miniature circuit breaker rated at 90 amps for 120/240V AC systems. It uses a bolt-on mounting style designed for compatible load centres and lighting panels. The unit carries a UL listing and a 10kA interrupting rating at the rated voltage. A toggle actuator provides manual switching for standard branch-circuit protection.
Suitable for 90A single-phase circuits only
This breaker fits installations that require a 90-amp, two-pole device on a 100A frame. It is not for circuits needing a different amperage, a three-pole configuration, or DC voltage ratings. Builders needing plug-on mounting or higher interrupting capacity should look at other models. The fixed 90A rating also means it cannot serve adjustable-trip applications.
10kA AIR at 120/240V AC
The maximum ampere interrupting rating of 10kA at 120/240V AC determines whether this breaker can safely clear faults in your panel. Verify that your system’s available fault current does not exceed this value. The rating is the primary specification for code-compliant selection in residential and light-commercial load centres.
Highlights
- 90 A rating handles heavy residential loads
- 2-pole design protects both legs of 120/240 V AC service
- 10 kA interrupting capacity clears faults safely
- Bolt-on mounting fits GE THQB load centers securely
- UL Listed for code-compliant installations
Specifications
| Brand | GE |
|---|
Questions about this item
Does this 90 A breaker fit a standard GE load center that accepts THQB bolt-on frames?
Yes — the THQB2190 uses a bolt-on mounting style and a 100 A frame size, so it installs directly into compatible GE load centers designed for the THQB series.
Can I run 1/0 AWG copper conductors on both poles of this 2-pole breaker?
The lug terminals accept wire from 6 AWG up to 1/0 AWG, so 1/0 AWG copper is within the rated range for each pole.
How do I verify the breaker is providing proper overcurrent protection after installation?
With the toggle in the ON position, measure voltage across each pole to confirm 120 V to neutral and 240 V between poles, then apply a known load up to 90 A and confirm the breaker holds without nuisance tripping.
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