ABB / General Electric THHQB22030 Miniature Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
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ABB / General Electric THHQB22030 - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
General Electric THHQB22030 miniature circuit breaker is rated 30A with 2 poles, voltages of 120VAC, 120/240VAC and 240VAC, and a 22kA interrupting rating at 120/240VAC. This Q-Line, THHQB series breaker features bolt-on mounting, thermal magnetic overcurrent protection, fixed thermal and magnetic trips, and long time and instantaneous trip functions. It has a single circuit arrangement, 1-phase configuration, load side lug terminal connection and 14-8 AWG wire range. Calibration temperature is 40°C. It has HACR standards and UL approval.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THHQB22030 |
| Series | THHQB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC, 120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | THQB |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE / ABB Load Centers and Lighting Panels |
| Wire Gauge | 14-8 AWG |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break |
Product FAQs
8 answersHow should I size a circuit for the General Electric THHQB22030?
Select it for a circuit requiring 30A overcurrent protection. Coordinate the circuit load and conductor ampacity with that rating and applicable electrical code requirements.
What circuit voltages and pole arrangement is this breaker rated for?
The breaker is rated for 120VAC, 120/240VAC and 240VAC, with two poles for single-phase circuits. Match the circuit voltage and required pole arrangement when selecting it.
How does the 22kA interrupting rating guide selection?
The 22kA interrupting rating at 120/240VAC is the maximum fault current the breaker is rated to interrupt at that voltage. Available fault current at the installation point must not exceed that rating.
How does the thermal-magnetic trip operate, and can I adjust it?
The thermal element provides long-time protection against sustained overcurrent, while the magnetic element provides instantaneous protection against high fault current. Both trip settings are fixed, so select the breaker with the required rating rather than planning to adjust its trip settings.
What does bolt-on mounting mean for installation?
Bolt-on mounting uses a bolted connection rather than a plug-in connection. Plan the installation around securing the breaker with its bolt-on mounting method.
What wire sizes can I terminate at the load side?
The load-side lug accepts wire from 14 AWG through 8 AWG. Choose a conductor within that range whose ampacity meets the circuit requirements, rather than using terminal capacity alone to determine conductor size.
Why does the 40°C calibration temperature matter?
The thermal trip is calibrated at a reference temperature of 40°C. Consider the installation's ambient temperature when evaluating thermal trip behavior, because thermal protection responds to heat.
What does the HACR rating mean when selecting this breaker?
HACR refers to heating, air conditioning and refrigeration applications. Use this rating when selecting overcurrent protection for equipment that calls for a HACR breaker.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 13 reviews.
- JLJames L. L.Verified BuyerReviewingABB / General Electric THHQB21100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/6/26ABB / General Electric THHQB21100
Fast Service and delivery, The breaker was as described and brand new! Great pricing and great Service. I paid extra for UPS ground, it was delivered quickly.
- SNScott N.Verified BuyerReviewingABB / General Electric THHQB32030 - 30A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/30/25Perfect
The correct breaker the first time - every time.
- AGAlejandra G.Verified BuyerReviewingABB / General Electric THHQB1140 - 40A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Everithing is good!
Everithing is good!
- LMLuis M.ReviewingABB / General Electric THHQB2145 - 45A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/19/23Good product and good service
Good product and good service
- SHScott H.ReviewingABB / General Electric THHQB2180 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/21/2280amp commercial breaker
Great how easy it was to order and how fast I got it. I will order one again when needed