ABB / General ElectricTHQL21125
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ABB / General Electric THQL21WY20 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Plug-On
ABB / General Electric
THQL21WY20
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
THQL21WY20
Quantity
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ABB / General Electric THQL21WY20 - 20A 2 Pole Molded Case Circuit Breaker
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Description
Part of the Q-Line series, the GE THQL21WY20 is a 20A, 2-pole circuit breaker. It features a specialized switched neutral design that safely disconnects both the ungrounded and grounded conductors simultaneously. The plug-on unit installs into GE PowerMark Gold load centers and A-Series panelboards. It accommodates 14-8 AWG copper or 12-8 AWG aluminum wire connections. Rated for 10kAIC at 120/240V, this breaker provides dependable thermal-magnetic protection.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THQL21WY20 |
| Series | THQL |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | THQL |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | GE PowerMark Gold Load Centers, GE A-Series Panelboards |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Padlock Attachment |
|---|---|
| Accessories | Switching Neutral (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 10C to 50C |
| Construction Features | HACR Rated, Internal Common Trip, Quick-Make/Quick-Break, Switching Neutral |
| Special Features | Switching Neutral |
Product FAQs
6 answersWhich panelboards and load centers accept the THQL21WY20 breaker?
This plug-in breaker installs directly into GE PowerMark Gold load centers and GE A-Series panelboards.
What is the purpose of the switched neutral design on the THQL21WY20?
The switched neutral configuration uses one thermal magnetic pole and one nonautomatic pole to safely disconnect both the ungrounded and grounded conductors simultaneously.
Does the THQL21WY20 provide thermal magnetic protection on both poles?
No. It is a switched neutral breaker featuring one thermal magnetic pole for overcurrent protection and one nonautomatic pole that simply disconnects the neutral conductor.
What wire gauges are compatible with the THQL21WY20 box lugs?
The terminals accommodate 14 to 8 AWG copper conductors or 12 to 8 AWG aluminum conductors.
How does the trip mechanism function on the THQL21WY20?
It features a fixed thermal magnetic trip unit with long-time and instantaneous (LI) functions to provide reliable protection against overloads and short circuits.
What is the UPC for the THQL21WY20 circuit breaker?
The UPC for this ABB and General Electric circuit breaker is 783164161632.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 90 reviews.
Total 5 star reviews: 88 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 78 most recent customer reviews
Last updated 8/5/25
Customers say these circuit breakers arrive quickly and fit their electrical panels perfectly. Many reviews mention competitive pricing compared to local suppliers. Frequent comments address the secure packaging and prompt delivery. Reviews highlight the exact match to specifications and ease of installation. The selection receives particular praise, especially for hard-to-find models.
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Rating
90 reviews
- KLKim L.Verified BuyerReviewingABB / General Electric THQL2130 - 30A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/6/26Circuit Breaker
Thank you for your fast efficient service! We had a power outage and several power surges that took out our breaker. Fast easy inexpensive repair!!
- RHRussell H.Verified BuyerReviewingABB / General Electric THQL1120GF - 20A GFCI Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars7/20/26Hard To Find
Had an old breaker that was hard to find but they had it and at a reasonable price!
- JBJeff B.Verified BuyerReviewingABB / General Electric THQL32030 - 30A 3 Pole Miniature Circuit BreakerRated 3 out of 5 stars7/14/26No paperwork
Part arrived, would have been nice to receive a packing slip or something in the box beside the part.
- SNScott N.Verified BuyerReviewingABB / General Electric THQL32100 - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Owner
Worked great, breaker was the exact match
- JDJerry D.Verified BuyerReviewingABB / General Electric THQL32050 - 50A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars6/19/26Best place to get great prices on 3pole breakers
i have bought from super breakers before & when i need these for a job i know they will be great. i buy to restock my truck.