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Circuit Breaker · 50A 2-Pole 120/240V · Plug-In Thermal-Magnetic Q-Line · ABB THQL2150
SKU: THQL2150
50A 2-pole Q-Line plug-in circuit breaker for 120/240V branch circuits, with thermal-magnetic trip and 10 kA interrupting capacity. Commonly used in compatible GE and ABB residential load centres for 240V loads such as ranges, HVAC equipment, welders, and other dedicated circuits; actual application must match panel listing, conductor size, and Canadian Electrical Code requirements.
What this product is for
The ABB THQL2150 is a Q-Line plug-in thermal-magnetic circuit breaker rated 50A, 2-pole, 120/240V. It is used to provide overload and short-circuit protection on compatible branch circuits in approved GE and ABB load centres and lighting panel applications.
Use for
- Protecting 240V dedicated circuits that require a 2-pole 50A breaker
- Compatible GE or ABB Q-Line / PowerMark style residential panel applications where the panel label lists this breaker type
- Loads such as electric ranges, HVAC equipment, shop equipment, welders, or other equipment matched to a 50A branch circuit
Typical circuit guidance: a 50A breaker is generally paired with equipment specifically marked for a 50A overcurrent device. Always confirm conductor sizing, termination ratings, and equipment nameplate requirements before installation.
Avoid for
- Panels that do not list THQL or compatible Q-Line breakers on the panel directory or labelling
- Applications requiring GFCI, AFCI, or bolt-on breakers instead of a standard plug-in thermal-magnetic breaker
- Circuits where interrupting rating, wire range, or terminal requirements do not match the installation
Best for
Electricians and maintenance buyers replacing or adding a standard 2-pole 50A plug-in breaker in a compatible ABB or legacy GE Q-Line panel. It suits straightforward branch-circuit protection where a standard common-trip breaker is required without ground-fault or arc-fault functions.
Installed in
Typically installed in compatible residential load centres, light commercial panels, and legacy GE PowerMark Gold or Q-Line panelboards. This breaker is approximately 2 in wide (51 mm) overall because Q-Line breakers are 1 in per pole.
Why this product exists
This breaker provides a direct plug-in option for Q-Line systems where contractors need a standard 50A 2-pole protective device with fixed thermal and magnetic trip characteristics. The common-trip design disconnects both poles together on a fault, which is required for many 240V loads.
Compared with similar products
Compared with tandem or single-pole breakers, the THQL2150 is a full-size 2-pole breaker for 120/240V circuits. Compared with THQB versions, this model is plug-in rather than bolt-on. If the application needs personnel protection or special code compliance, a GFCI or AFCI variant may be required instead of this standard breaker.
Specifications
- Manufacturer part number: THQL2150
- Brand: ABB
- Legacy branding: GE / GE Industrial Solutions Q-Line
- Product family: Q-Line
- Type: Plug-in circuit breaker
- Pole configuration: 2-pole
- Ampere rating: 50A
- Voltage rating: 120/240V AC
- Interrupting rating: 10 kAIC at 120/240V AC
- Trip technology: Thermal-magnetic
- Trip function: LI, fixed long-time and instantaneous
- Suitable for reverse feed: Yes
- Special marking: HACR
- Wire range: #8 to #3 AWG copper or aluminium
- Approvals / standards: UL 489, CSA, CSA C22.2 No. 5, NEMA AB 1
- Breaker width: 2 in (51 mm) nominal overall
Rule of thumb only: this breaker is commonly selected for larger 240V branch circuits, but actual load suitability depends on equipment nameplate current, conductor ampacity, ambient conditions, and local code. Actual performance depends on installation conditions, conductor type, termination temperature rating, and local electrical code.
- BrandABB Electrical Distribution
- Warranty5 year
- Electrical
- Poles2 Pole
- Amps50A
- Voltage120/240
- Interrupt Rating (AIC)10
- Physical
- MountingPush on
- Width2"
- Breaker TypeStandard
Minimum Order $20
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Standard Shipping-Free on orders over $500 in Metropolitan Areas / Subject to $750 in Rural Areas.
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998(Updated August 2026)
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.
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