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ABB / General Electric THHQB32030 Miniature Circuit Breaker

  • 30A
  • 3 Pole
  • Bolt-On
ABB / General Electric THHQB32030
Miniature Circuit Breaker
Brand ABB / General Electric
SKU THHQB32030
Select Item Condition
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  • 30A
  • 3 Pole
  • Bolt-On

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ABB / General Electric THHQB32030 - 30A 3 Pole Miniature Circuit Breaker

ABB / General Electric THHQB32030 - 30A 3 Pole Miniature Circuit Breaker

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$149.80 In Stock

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Description

Designed for robust electrical protection, the GE THHQB32030 is a 3-pole, 30-amp miniature circuit breaker suitable for commercial and industrial facilities. It delivers reliable thermal-magnetic tripping with a 22kAIC interrupting capacity at 240VAC. This Q-Line breaker mounts into GE A-Series, AQ, and ReliaGear panelboards using a secure bolt-on connection that resists vibration. The unit features a quick-make/quick-break mechanism and an internal common trip for consistent performance.

Specifications

Key specifications
Brand ABB / General Electric
Part Number THHQB32030
Series THHQB
Amperage 30A
Poles 3
Mounting Style Bolt-On
Voltage 120VAC, 240VAC, 120/240VAC
Phase 3
AIC Rating 22kA @ 120VAC, 22kA @ 240VAC, 22kA @ 120/240VAC
Fit and installation
Frame Type THQB
Terminal Type Box Lugs
For Use With GE A-Series Panelboards, GE AQ Panelboards, ReliaGear Panelboards
Wire Gauge 14-8 AWG (Cu), 12-8 AWG (Al)
Max Wire 8 AWG
Min Wire 14 AWG (Cu), 12 AWG (Al)
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment, Alarm Switch
Accessories Load Side Lugs Included
Standards CSA C22.2 No. 5, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Common Trip, Quick-Make/Quick-Break, Non-Interchangeable Trip

Product FAQs

7 answers
Which panelboards accept the THHQB32030 circuit breaker?

This Q-Line bolt-on breaker mounts directly into commercial grade GE A-Series panelboards, AQ panelboards, and ABB ReliaGear panelboards.

What is the difference between the THQB32030 and THHQB32030?

Both are 30A, 3-pole bolt-on breakers with the exact same physical dimensions. The difference is their maximum short-circuit interrupting capacity. The THQB series is rated for 10kAIC, while the THHQB series is built for a higher 22kAIC fault current.

Is the THHQB32030 breaker HACR rated?

Yes, this model carries a Heating, Air Conditioning, and Refrigeration (HACR) rating, meaning it is certified to safely protect dedicated HVAC circuits and motor loads.

How does the THHQB32030 connect to the electrical panel?

It features a direct bolt-on mounting style. The breaker terminals are mechanically bolted to the panel busbar rather than snapped onto a rail, which prevents accidental disconnection from vibration in commercial and industrial environments.

Can I install this breaker on a 208Y/120V three-phase system?

Yes. The breaker is rated for a maximum of 240VAC, which fully supports installations on both 240V delta and 208Y/120V wye three-phase systems.

Why might my THHQB32030 breaker have an ABB logo instead of GE?

ABB acquired GE Industrial Solutions. As a result of this transition, Q-Line breakers may feature ABB branding, General Electric branding, or a combination of both. The internal components, physical footprint, and UL listings remain completely identical.

What type of trip unit is inside the THHQB32030?

It contains a fixed thermal-magnetic trip unit. The thermal component provides a long-time delay protection curve against sustained overloads, while the magnetic component provides instantaneous trip protection against short circuits.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 13 reviews
Rating
Ratings
13 reviews
  • JL
    James L. L.
    Verified Buyer
    Reviewing
    ABB / General Electric THHQB21100 - 100A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    4/6/26
    ABB / General Electric THHQB21100

    Fast Service and delivery, The breaker was as described and brand new! Great pricing and great Service. I paid extra for UPS ground, it was delivered quickly.

  • SN
    Scott N.
    Verified Buyer
    Reviewing
    ABB / General Electric THHQB32030 - 30A 3 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/30/25
    Perfect

    The correct breaker the first time - every time.

  • AG
    Alejandra G.
    Verified Buyer
    Reviewing
    ABB / General Electric THHQB1140 - 40A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/4/25
    Everithing is good!

    Everithing is good!

  • LM
    Luis M.
    Flag of United States
    Reviewing
    ABB / General Electric THHQB2145 - 45A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/19/23
    Good product and good service

    Good product and good service

  • SH
    Scott H.
    Flag of United States
    Reviewing
    ABB / General Electric THHQB2180 - 80A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/21/22
    80amp commercial breaker

    Great how easy it was to order and how fast I got it. I will order one again when needed