GE / ABB THHQB Q-Line Bolt-On 22kA Commercial Circuit Breakers
The GE THHQB Q-Line high-interrupting bolt-on series provides 22kAIC interrupting capacity with bolt-on terminal connections for commercial panelboards. The THHQB is the bolt-on version of the THHQL for use where bolt-on mounting is required.
Series Specifications
| Frame | Commercial Bolt-On High Interrupting — 225A Frame |
|---|---|
| Amperage Range | 15A - 200A |
| Voltage | 120/240VAC |
| Poles | 1-Pole, 2-Pole, 3-Pole |
| Interrupting Rating | 22kA @ 120/240V |
| Mounting | Bolt-On |
| Trip Type | Thermal-Magnetic |
History and Replacement Context
The THHQB series is the bolt-on variant of GE's high-interrupting Q-Line commercial series. ABB acquired GE Industrial Solutions in 2018 and continues production under the ABB brand.
Typical Applications
- Commercial branch circuits
- High fault current locations
- Bolt-on panelboards
- Commercial lighting
- HVAC circuits
Available Catalog Numbers
- THHQB1115 — 15A, 1 pole, 120/240VAC
- THHQB1120 — 20A, 1 pole, 120/240VAC
- THHQB1125 — 25A, 1 pole, 120/240VAC
- THHQB1130 — 30A, 1 pole, 120/240VAC
- THHQB1135 — 35A, 1 pole, 120/240VAC
- THHQB1140 — 40A, 1 pole, 120/240VAC
- THHQB1145 — 45A, 1 pole, 120/240VAC
- THHQB1150 — 50A, 1 pole, 120/240VAC
- THHQB1160 — 60A, 1 pole, 120/240VAC
- THHQB1170 — 70A, 1 pole, 120/240VAC
- THHQB2115 — 15A, 2 pole, 120/240VAC
- THHQB2120 — 20A, 2 pole, 120/240VAC
- THHQB2125 — 25A, 2 pole, 120/240VAC
- THHQB2130 — 30A, 2 pole, 120/240VAC
- THHQB2135 — 35A, 2 pole, 120/240VAC
- THHQB2140 — 40A, 2 pole, 120/240VAC
- THHQB2145 — 45A, 2 pole, 120/240VAC
- THHQB2150 — 50A, 2 pole, 120/240VAC
- THHQB2160 — 60A, 2 pole, 120/240VAC
- THHQB2170 — 70A, 2 pole, 120/240VAC