- Edmonton Stock: 36
Circuit Breaker · 2-Pole 40A 120/240V · 1/2 in Plug-In Q-Line · ABB THQP240
ABB THQP240 is a Q-Line plug-in thermal-magnetic circuit breaker with 2 poles, 40A rating, 120/240V AC rating, and 10 kA interrupting capacity. Its 1/2 in space-saving format is commonly used where panel space is limited in compatible ABB, GE by ABB, and legacy GE load centres.
What this product is for
The ABB THQP240 is a 2-pole plug-in circuit breaker used to protect 120/240V AC branch circuits from overload and short circuit conditions in compatible Q-Line load centres. It is a thermal-magnetic breaker in the THQP family with a compact 1/2 in format for space-sensitive panel layouts.
Use for
Use for 40A two-pole branch circuits serving equipment such as electric water heaters, baseboard heat, small HVAC loads, compressors, or other 240V loads where the panel is listed for THQP breakers. A typical continuous-load rule of thumb is to size the breaker so the ongoing load does not exceed 80% of rating, or approximately 32A on a 40A breaker. Actual loading must follow equipment nameplate data, local code, and panelboard approval.
Avoid for
Avoid using this breaker in panels not identified for ABB/GE Q-Line THQP devices, or where a full-width breaker type is required. Do not use it as a substitute based only on fit. Compatibility, interrupting rating, and circuit application must be confirmed before installation.
Best for
Best for electricians and maintenance buyers who need a compact 2-pole 40A breaker for compatible residential or light commercial load centres where conserving breaker space matters.
Installed in
Installed in compatible ABB ReliaHome and legacy GE or GE by ABB PowerMark and Q-Line style load centres that accept THQP plug-in breakers. Always verify the panel label and approved breaker schedule before ordering or installing.
Why this product exists
This breaker exists to provide standard thermal-magnetic branch protection in a narrower footprint than many full-size breakers. The compact 1/2 in design helps add or replace circuits in approved panels where available space is limited.
Compared with similar products
Compared with standard 1 in plug-in breakers, the THQP240 uses a narrower 1/2 in format to save panel space. Compared with tandem or quad arrangements, this is a dedicated 2-pole 40A breaker rather than a multi-circuit combination device. Buying decision should be based on panel compatibility first, then amperage, pole count, voltage, and interrupting rating.
Specifications
- Manufacturer part number: THQP240
- Brand: ABB
- Breaker family: Q-Line THQP
- Product type: Plug-in thermal-magnetic circuit breaker
- Pole configuration: 2-pole
- Current rating: 40A
- Voltage rating: 120/240V AC
- Interrupting rating: 10 kAIC
- Breaker width: 1/2 in (approximately 12.7 mm) format
- Standards: UL/cUL listed, UL 489 family listing
- Typical system use: Single-phase 120/240V systems
Typical guidance only: branch-circuit suitability depends on conductor sizing, equipment load, ambient conditions, and the specific load centre listing.
- BrandABB Electrical Distribution
- Warranty5 year
- Electrical
- Poles2 Pole
- Amps40A
- Voltage120/240
- Interrupt Rating (AIC)10
- Physical
- MountingPush on
- Width1"
- 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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