ABB / General ElectricTHQC2150WL
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ABB / General Electric THQC2145WL Molded Case Circuit Breaker
- 45A
- 2 Pole
- DIN Rail
ABB / General Electric
THQC2145WL
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THQC2145WL
Quantity
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ABB / General Electric THQC2145WL - 45A 2 Pole Molded Case Circuit Breaker
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Description
Built for dependable performance, the GE THQC2145WL is a 2-pole, 45A molded case circuit breaker utilizing proven thermal-magnetic trip technology. It is well-suited for power distribution needs requiring 120/240VAC operation. This breaker mounts securely onto DIN rails and fits seamlessly into compatible GE Q-Line enclosures. Equipped with factory-installed line and load lugs, it accommodates 8-3 AWG copper or 8-2 AWG aluminum conductors.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQC2145WL |
| Series | THQC |
| Amperage | 45A |
| 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 | GE Q-Line Enclosures, DIN Rail, OEM Panels |
| Wire Gauge | 8-3 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 3 AWG (Cu), 2 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| 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, Internal Common Trip, Quick-Make/Quick-Break, Visual Trip Indicator |
Product FAQs
9 answersWhat is the mounting difference between GE THQC, THQB, and THQL circuit breakers?
The difference is the physical mounting configuration. THQC breakers like the THQC2145WL are feed-thru or DIN rail mounted with lugs on both ends. THQB models are bolt-on for commercial panels, and THQL models are plug-in for standard residential load centers.
What does the WL suffix indicate on the THQC2145WL catalog number?
The WL suffix means the breaker is factory-equipped with both line and load lugs. If an application does not require line lugs, the base breaker is often referenced without the WL suffix.
What wire gauges are accepted by the terminals on the THQC2145WL?
The factory-installed lugs accommodate 8 AWG to 3 AWG copper conductors, or 8 AWG to 2 AWG aluminum conductors. Always verify local codes for proper wire sizing based on the 45A rating.
Can the THQC2145WL be installed in a standard GE PowerMark Gold load center?
No. Standard GE PowerMark Gold residential load centers require THQL plug-in breakers. The THQC2145WL is a feed-thru breaker designed for DIN rail mounting, OEM control panels, or specific GE Q-Line enclosures built for lug-to-lug connections.
How does the LI trip function operate on this thermal-magnetic breaker?
The LI designation indicates two levels of protection. The Long-Time (L) thermal element reacts to sustained overloads by heating a bimetal strip, while the Instantaneous (I) magnetic element trips the breaker immediately when a severe short circuit is detected.
How is the THQC2145WL secured inside an electrical enclosure?
This feed-thru breaker is designed to snap onto a standard 35mm DIN rail. It can also be installed using GE snap-in back mounting plates, such as the TQCGFBMPA2 for two-pole configurations, depending on the specific OEM panel design.
Does the THQC2145WL include built-in arc fault or ground fault protection?
No. This model is a standard thermal-magnetic circuit breaker. It does not contain Arc Fault Circuit Interrupter (AFCI) or Ground Fault Circuit Interrupter (GFCI) technology.
Are ABB and General Electric THQC breakers interchangeable?
Yes. ABB acquired the GE Industrial Solutions division. Breakers that were previously branded as General Electric Q-Line are now manufactured by ABB to the exact same UL standards, physical dimensions, and electrical specifications.
What does the 10kAIC rating at 240V indicate for this breaker?
The 10kAIC (Amps Interrupting Capacity) rating means the breaker can safely interrupt up to 10,000 amps of fault current at 240V AC without sustaining internal damage or causing an external hazard.
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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!