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ABB / General Electric THQC2140 Molded Case Circuit Breaker

  • 40A
  • 2 Pole
  • DIN Rail
ABB / General Electric THQC2140
Molded Case Circuit Breaker
Brand ABB / General Electric
SKU THQC2140
Select Item Condition
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  • 40A
  • 2 Pole
  • DIN Rail

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ABB / General Electric THQC2140 - 40A 2 Pole Molded Case Circuit Breaker

ABB / General Electric THQC2140 - 40A 2 Pole Molded Case Circuit Breaker

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$30.29 In Stock

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Description

Built for robust electrical distribution, the GE THQC2140 is a 40-amp, two-pole miniature circuit breaker from the trusted Q-Line family. It provides essential long-time and instantaneous trip functions for residential, commercial, and industrial loads. This versatile breaker mounts onto standard 35mm DIN rail or fits securely into GE Q-Line enclosures and OEM panels. It includes load-side lugs for straightforward wiring connections.

Specifications

Key specifications
Brand ABB / General Electric
Part Number THQC2140
Series THQC
Amperage 40A
Poles 2
Mounting Style DIN Rail
Voltage 120/240VAC
Phase 1
AIC Rating 10kA @ 120/240VAC
Fit and installation
Terminal Type Lugs
For Use With GE Q-Line Enclosures, DIN Rail, OEM Panels
Wire Gauge 8-3 AWG (Cu), 8-3 AWG (Al)
Max Wire 3 AWG
Min Wire 8 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, HACR, UL 489
Approval CSA, UL
Temp Rating 10C to 50C
Construction Features HACR Rated, Common Trip, Quick-Make/Quick-Break, Non-Interchangeable Trip

Product FAQs

6 answers
What types of panels and enclosures are compatible with the THQC2140?

This breaker is designed for installation in GE Q-Line enclosures and various OEM panels. It is also compatible with standard DIN rail systems for flexible mounting in industrial control panels.

What wire sizes and conductor materials are supported by the terminals?

The factory-installed lugs on this breaker accept 8 AWG to 3 AWG wire. The terminals are dual-rated for use with both copper and aluminum conductors.

How is the THQC2140 secured during installation?

It utilizes a bolt-on connection for a secure, vibration-resistant fit in compatible panels, and it can also be mounted directly onto a standard 35mm DIN rail.

How does the thermal magnetic trip unit operate on this breaker?

The fixed thermal magnetic unit provides Long-Time protection for sustained overloads and Instantaneous protection to quickly clear severe short circuits.

Is the trip point adjustable on the THQC2140?

No, this breaker features a fixed thermal magnetic trip unit. The trip settings cannot be adjusted in the field.

Does this breaker include a common trip mechanism?

Yes. As a 2-pole Q-Line breaker, it features an internal common trip bar that ensures both poles open simultaneously during a fault, preventing single-phasing on connected loads.

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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 42 reviews
Reviews Summary
Customers say these electrical breakers are exactly what they needed, particularly for hard-to-find models. Many reviews mention quick delivery and proper packaging. The products consistently fit their intended applications, from generators to furnaces. Frequent comments address the accurate product descriptions that helped ensure correct ordering. Users note the items arrive in new condition and well-protected. Common feedback includes appreciation for product availability, especially for older or uncommon models.
Rating
Ratings
42 reviews
  • PO
    Paul O.
    Verified Buyer
    Reviewing
    ABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    9/3/26
    Recent Breaker Purchases

    These breakers matched perfectly for my main AC supplies for my boat. I had the original 43-year-old Chinese (GenFu) breakers that failed and these GEs were a perfect match. My only reservation for not providing a 5-star review is breakers do not arrive in GE's original packaging which can lead to questions whether they are truly "new" breakers. Otherewise, happy I found some that replaced my originals. Thanks SB!

  • AA
    Alfredo A.
    Verified Buyer
    Reviewing
    ABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/26/26
    Replacement of disconnect switches

    Good product and price

  • JS
    Joe S.
    Verified Buyer
    Reviewing
    ABB / General Electric THQC32015WL - 15A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    5/22/26
    THQC tough to find…

    Works as should

  • MP
    Mike P.
    Verified Buyer
    Reviewing
    ABB / General Electric THQC2150 - 50A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/6/26
    Everything worked out just fine. I would recommend it again.

    Considering how old the panel was the breaker worked out just fine. Were you again?

  • QP
    Quang P.
    Verified Buyer
    Reviewing
    ABB / General Electric THQC2130 - 30A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    2/10/26
    Fast Shipping & Quality Service

    Great experience with SuperBreakers! The GE THQL 60A and 30A breakers arrived with fast shipping and professional packaging. The free shipping was a huge bonus. My HVAC is back up and running—excellent service!