Quad Plug-In Circuit Breaker · 20A 1P + 20A 2P + 20A 1P · 120/240V Q-Line · ABB THQLQ202020
Quad plug-in thermal-magnetic circuit breaker for ABB and legacy GE PowerMark load centres, combining two 20A single-pole circuits and one 20A double-pole circuit in a 2 in panel space. Commonly used where extra branch circuits are needed without adding a larger panel; verify panel acceptance and circuit layout before installation.
What this product is for
The ABB THQLQ202020 is a Q-Line quad plug-in circuit breaker that provides two 20A single-pole circuits and one 20A double-pole circuit in one compact breaker assembly. It is used in compatible ABB and legacy GE PowerMark load centres where panel space is limited but additional 120/240V branch circuit protection is required.
Use for
- Adding multiple 20A branch circuits in residential panels without expanding the load centre
- Supplying one 240V 20A load plus two 120V 20A circuits in compatible Q-Line panelboards
- Service and replacement work in ABB or GE by ABB PowerMark installations that accept tandem and quad breakers
Avoid for
- Panels not specifically listed to accept THQLQ quad breakers
- Applications requiring a different interrupting rating, trip curve, or breaker format
- Installations where local code, panel labelling, or circuit balancing requirements are not confirmed
Best for
Best for electricians and maintenance teams needing to increase circuit count in a crowded load centre while keeping to the Q-Line platform. This style is especially useful when one 240V circuit and two 120V circuits must fit into approximately 2 in (51 mm) of panel width.
Installed in
Installed in compatible single-phase ABB and GE by ABB PowerMark load centres, with or without wing stabs, where the panel directory and labelling permit tandem or quad breaker use. Always confirm the exact panel model and breaker position before ordering.
Why this product exists
Quad breakers exist to increase usable circuit capacity in existing panels without moving to a larger enclosure. For retrofit work, this can reduce labour and material compared with replacing the full load centre, provided the panel is approved for this breaker type.
Typical trade guidance: a 20A branch circuit is commonly paired with #12 AWG copper conductors. Actual conductor sizing, load calculation, and breaker selection depend on equipment nameplate data, installation conditions, and local electrical code.
Compared with similar products
Compared with a standard full-size 2-pole breaker, this quad format adds two extra 120V circuits in the same general breaker space. Compared with a tandem breaker, it also provides a 2-pole 240V circuit, making it a practical choice when mixed 120V and 240V loads must be protected from one compact assembly.
Specifications
- Manufacturer part number: THQLQ202020
- Brand: ABB
- Product family: Q-Line
- Breaker type: Quad plug-in circuit breaker
- Trip type: Thermal-magnetic
- Configuration: 20A 1-pole + 20A 2-pole + 20A 1-pole
- Voltage rating: 120/240V AC
- Interrupting rating: 10 kAIC
- Mounting: Plug-in
- Breaker space used: approximately 2 in (51 mm)
- Panel compatibility: Compatible ABB and legacy GE PowerMark load centres that are listed to accept tandem and quad breakers
- Compliance: UL 489 listed; check local approval requirements for the installation jurisdiction
- BrandABB Electrical Distribution
- Warranty5 year
- Electrical
- Poles1 Pole
- Amps20A-220A-20A
- Voltage120/240 Volt
- 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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