ABB / General ElectricTHQC2120
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Free Shipping Over $99
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ABB / General Electric THQC2120WL Molded Case Circuit Breaker
- 20A
- 2 Pole
- DIN Rail
ABB / General Electric
THQC2120WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THQC2120WL
Quantity
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ABB / General Electric THQC2120WL - 20A 2 Pole Molded Case Circuit Breaker
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Description
Manufactured by GE, the THQC2120WL is a 2-pole, 20A molded case circuit breaker designed for reliable branch circuit protection. The "WL" designation highlights its factory-installed line and load lugs for straightforward wire termination. This compact breaker mounts onto standard 35mm DIN rails, offering excellent versatility for OEM control panels and GE Q-Line enclosures. Providing a 10 kAIC rating at 120/240VAC, the unit utilizes an internal common trip bar and is UL 489 listed.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQC2120WL |
| Series | THQC |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQC |
|---|---|
| Terminal Type | Lugs |
| For Use With | DIN Rail Systems, OEM Panels, Enclosures, Control Panels |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, Common Trip, Quick-Make/Quick-Break, Non-Interchangeable Trip, Visual Trip Indicator |
Product FAQs
8 answersWhy is this breaker listed as both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Depending on the manufacturing date, the THQC2120WL may feature either ABB or GE branding. The physical dimensions, mounting, and performance specifications are identical regardless of the label.
What does the WL suffix mean in the THQC2120WL catalog number?
The WL designation indicates that the breaker is equipped with factory-installed line and load lugs for direct wire termination.
Can I use the THQC2120WL in place of a THQB or THQL breaker?
No. While they belong to the same GE Q-Line family, they use different mounting methods. The THQC is a feed-thru breaker designed for DIN rail or base mounting, whereas the THQB is a bolt-on breaker and the THQL is a plug-in breaker for load centers.
How is the THQC2120WL breaker mounted in a control panel?
This feed-thru breaker is designed to snap directly onto a standard 35mm DIN rail. It can also be base-mounted using a mounting plate, which is common in OEM equipment and industrial control panels.
Is the THQC2120WL suitable for HVAC equipment?
Yes, this breaker is HACR rated. It is approved for use with heating, air conditioning, and refrigeration systems that require motor group protection to handle inrush currents without nuisance tripping.
What type of trip mechanism does the THQC2120WL use?
It utilizes a non-interchangeable thermal magnetic trip unit. The thermal element provides a delayed trip for sustained overloads, while the magnetic element provides an instantaneous trip to protect against short circuits.
Is the THQC2120WL circuit breaker suitable for reverse feeding?
Yes, this breaker is suitable for reverse feed applications. It does not have line and load restrictions, allowing for flexible power flow direction during installation.
Does this breaker include ground fault or arc fault protection?
No, the THQC2120WL is a standard thermal magnetic breaker. It does not provide GFCI or AFCI protection.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 42 reviews.
Reviews Summary
Generated by AI from 35 most recent customer reviews
Last updated 8/15/25
Customers say these electrical breakers are exactly what they needed, particularly for hard-to-find models. Many reviews mention quick delivery and proper packaging. The products consistently fit their intended applications, from generators to furnaces. Frequent comments address the accurate product descriptions that helped ensure correct ordering. Users note the items arrive in new condition and well-protected. Common feedback includes appreciation for product availability, especially for older or uncommon models.
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Rating
42 reviews
- POPaul O.Verified BuyerReviewingABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars9/3/26Recent Breaker Purchases
These breakers matched perfectly for my main AC supplies for my boat. I had the original 43-year-old Chinese (GenFu) breakers that failed and these GEs were a perfect match. My only reservation for not providing a 5-star review is breakers do not arrive in GE's original packaging which can lead to questions whether they are truly "new" breakers. Otherewise, happy I found some that replaced my originals. Thanks SB!
- AAAlfredo A.Verified BuyerReviewingABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/26/26Replacement of disconnect switches
Good product and price
- JSJoe S.Verified BuyerReviewingABB / General Electric THQC32015WL - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/22/26THQC tough to find…
Works as should
- MPMike P.Verified BuyerReviewingABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/6/26Everything worked out just fine. I would recommend it again.
Considering how old the panel was the breaker worked out just fine. Were you again?
- QPQuang P.Verified BuyerReviewingABB / General Electric THQC2130 - 30A 2 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars2/10/26Fast Shipping & Quality Service
Great experience with SuperBreakers! The GE THQL 60A and 30A breakers arrived with fast shipping and professional packaging. The free shipping was a huge bonus. My HVAC is back up and running—excellent service!