Circuit Breaker · 70A, 3-Pole, 120/240V AC · Bolt-On Q-Line Thermal-Magnetic · ABB THQB32070
What this product is for
The ABB THQB32070 is a Q-Line miniature circuit breaker used to provide branch-circuit overcurrent protection in compatible bolt-on panelboards, load centres, and lighting panels. It is a 3-pole, 70A breaker rated for 120/240V AC systems and uses a thermal-magnetic trip mechanism for overload and short-circuit protection.
Use for
- Commercial and light industrial distribution panels that accept ABB / GE Q-Line bolt-on breakers
- 3-phase branch circuits requiring a 3-pole 70A breaker
- Applications where 10 kAIC at 120/240V AC meets the available fault current requirement
- Installations needing a bolt-on mounting style rather than plug-in
Avoid for
- Panels not listed for THQB series breakers
- Applications requiring a higher interrupting rating than 10 kAIC
- Circuits needing GFCI, AFCI, or other special trip functions not provided by this standard breaker
- 277/480V systems
Best for
Best for electricians replacing or specifying a standard ABB / legacy GE Q-Line bolt-on breaker in existing commercial distribution equipment. It suits jobs where secure bolt-on mounting, 3-pole protection, and straightforward replacement within a listed panel are the main buying factors.
Installed in
Typically installed in compatible indoor panelboards, lighting panels, and load centres. As a rule of thumb, a 70A breaker is selected for circuits where conductor sizing, equipment ratings, and calculated load all support that ampacity. Actual application depends on conductor material, termination temperature rating, equipment nameplate, and local electrical code.
Why this product exists
This breaker provides a bolt-on branch protection option within the ABB / GE Q-Line platform. Compared with plug-in styles, bolt-on breakers are commonly chosen where panel design or specification calls for a more secure mechanical connection to the bus.
Compared with similar products
Compared with a THQL plug-in breaker, the THQB version is the bolt-on equivalent for compatible equipment. This model is a 3-pole 70A unit in the Q-Line family, making it suitable for multi-pole branch circuits where a standard thermal-magnetic breaker is required. Always match the breaker series to the panel listing rather than choosing by amperage alone.
Specifications
- Manufacturer: ABB
- Part number: THQB32070
- Product family: Q-Line / TEY-Q-Line bolt-on miniature circuit breakers
- Type: Bolt-on thermal-magnetic circuit breaker
- Poles: 3
- Ampere rating: 70A
- System voltage: 120/240V AC
- Interrupting rating: 10 kAIC at 120/240V AC
- Trip style: Non-interchangeable thermal-magnetic
- Mounting: Bolt-on
- Wire range: #6 to 1/0 AWG copper; #4 to 1/0 AWG aluminium
- Suitable for reverse feed: Yes
- Typical breaker width: 3 in (76 mm), based on 1 in (25.4 mm) per pole Q-Line format
- Standards / markings: UL listed; HACR marked
- BrandABB Electrical Distribution
- Warranty5 year
- Electrical
- Poles3 Pole
- Amps70A
- Voltage120/240
- Interrupt Rating (AIC)10
- Physical
- MountingBolt On
- Width3"
- Breaker TypeStandard
Minimum Order $20
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Standard Shipping-Free on orders over $249 in Metropolitan Areas / $499 in Rural Areas
(All Other Accounts)
Standard Shipping-Free on orders over $499
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
Burnaby Warehouse 5608 Goring St Burnaby, V5B 3A3, BC
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
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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