ABB THQL Q-Line 2-Pole Thermal...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$11.10
ABB THQL Q-Line 2-Pole Thermal-Magnetic Circuit Breaker, 120/240V

ABB THQL Q-Line 2-Pole Thermal-Magnetic Circuit Breaker, 120/240V

(No reviews yet) Write a Review

Model: THQL1120
$11.10

In Stock (leaves warehouse same day if ordered before 3pm ET)

$11.10
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

ABB THQL Q-Line 2-Pole Thermal-Magnetic Circuit Breaker, 120/240V

The ABB THQL Q-Line 2-Pole Thermal-Magnetic Circuit Breaker, 120/240V is a plug-in style breaker engineered for residential and light commercial load centers. Rated 10kA@120 Vac / 10kA@120/240 Vac, this two-pole breaker carries a HACR load rating for heating, air conditioning, and refrigeration circuits, and uses the Q-Line (Plug-In) frame with a non-interchangeable trip range for consistent, dependable protection. As part of the ABB Q-Line sub-brand, it is built to work within Q-Line compatible panelboards and load centers for straightforward field replacement.

Key Features

  • Q-Line Configuration: Plug-in Q-Line frame designed for compatibility with ABB Q-Line load centers and panelboards.
  • 2-Pole Design: Two-pole construction delivers protection for 240V branch circuits.
  • Thermal Magnetic Application: Thermal magnetic operation combines a bimetal thermal element for overload protection with a magnetic element for fast short-circuit response.
  • LI Trip Type: LI trip type construction supports reliable, repeatable tripping performance across the breaker's rated range.
  • 10kA Interrupt Rating: Rated 10kA@120 Vac / 10kA@120/240 Vac for dependable fault current interruption in residential and light commercial panels.
  • HACR Load Rating: Suitable for heating, air conditioning, and refrigeration equipment circuits that require a HACR-rated breaker.
  • Non-Interchangeable Trip Range: Fixed, non-interchangeable trip range construction supports consistent, tamper-resistant performance over the life of the breaker.
  • Voltage Rating: 120/240V rating suits standard residential and commercial branch circuit applications.

Certifications & Compliance

  • Manufactured to UL Standard E11592
  • HACR Load Rated

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Residential and Light Commercial Load Centers
  • Panelboard Circuit Protection
  • HACR Equipment Circuits (Heating, AC, Refrigeration)
  • Branch Circuit Overload and Short-Circuit Protection
  • Renovation and New Panel Installations
  • Q-Line Compatible Panelboard Upgrades and Replacements

Why ABB?

ABB THQL Q-Line breakers are engineered for dependable thermal magnetic protection with a 10kA interrupt rating and HACR load rating, making them a trusted choice for residential and commercial panelboards. Manufactured to UL Standard E11592, ABB Q-Line breakers deliver the code-compliant performance electrical professionals rely on for safe, long-lasting circuit protection. The Q-Line (Plug-In) frame and non-interchangeable trip range are built for consistent field performance panel after panel.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Circuit Breaker
Series:
Q-Line
Configuration:
2-Pole
Voltage Rating:
120/240V
Standards:
UL E11592
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

ABB THQL1120 – Frequently Asked Questions

1) Will an ABB THQL breaker fit my existing load center?
THQL Q-Line breakers are plug-in style and are built to seat in ABB Q-Line compatible load centers and panelboards. If your panel takes Q-Line plug-in breakers, a THQL drops straight into the bus stab for a field replacement. It will not mount on DIN rail, so it is not a substitute in a panel built for DIN-mounted breakers.
2) What amperages and pole counts do ABB THQL circuit breakers come in?
The THQL Q-Line line runs 1-pole from 15 through 60 amps (THQL1115 up to THQL1160), 2-pole from 15 through 90 amps (THQL2115 through THQL2190, including 45, 70 and 80 amp sizes), and 3-pole from 15 through 100 amps (THQL32015 through THQL32100). The part number tells you the story: the digit after THQL is the pole count, the trailing digits are the amp rating.
3) Can I use a THQL breaker on an air conditioning or heat pump circuit?
Yes. The THQL carries a HACR load rating, which is what equipment nameplates on heating, air conditioning and refrigeration gear typically call for. Most condensing units and heat pumps land on a 2-pole 240V breaker, and the 2-pole THQL range covers 15 through 90 amps. Size it to the nameplate maximum overcurrent protection, not to the wire alone.
4) Is a 10kA interrupt rating enough for my panel?
The THQL is rated 10kA at 120 Vac and 10kA at 120/240 Vac, which covers typical residential and light commercial load centers. If your available fault current calculation at the panel exceeds 10kA, which happens on services fed by a large utility transformer or close to it, you need a higher AIC breaker instead. Check the utility fault current letter before assuming.
5) Does the THQL need a 3-pole version for 208V three-phase, or will two poles do?
For a 208Y/120V three-phase branch circuit feeding three-phase equipment, you need the 3-pole THQL32 series, offered 15 through 100 amps. A 2-pole THQL handles single-phase 240V or two legs of a three-phase panel only. The line is rated 120/240V, so it is not a breaker for 480V systems.
6) Is a Square D Multi9 C60 breaker a substitute for an ABB THQL Q-Line breaker in a residential load center?
No. The ABB THQL uses the Q-Line plug-in frame and is built to drop into Q-Line compatible load centers and panelboards, so it seats on the panel bus. The Square D C60 UL489 miniature circuit breaker is a DIN rail mount device, which means it needs a DIN rail enclosure rather than a plug-in bus stab. If the panel takes Q-Line plug-in breakers, stay with the THQL; the C60 family belongs in DIN rail control panels and equipment enclosures.
7) What should I use instead of an ABB THQL when the panel is an I-Line panelboard?
The THQL is a Q-Line plug-in breaker and will not mount in an I-Line panelboard. For that bus, the Square D PowerPacT Q I-Line circuit breaker is the matching style, since it is built as an I-Line device. Use the THQL only where the panel accepts Q-Line plug-in breakers.
8) I need a 2-pole 240V breaker for a condenser. Does a Square D C-curve MCB work the same as the ABB THQL2130?
They are not interchangeable choices for that load. The ABB THQL2130 is a 2-pole 30 amp Q-Line plug-in breaker carrying a HACR load rating, which is what heating, air conditioning, and refrigeration equipment circuits typically call for. The Square D Multi9 C60 comparable is a 1-pole C-curve miniature circuit breaker rated 120V AC, so it is single pole and does not cover a 240V two-pole condenser circuit. For the HACR circuit in a Q-Line panel, the THQL 2-pole is the one to order.
9) What does thermal-magnetic mean on the THQL, and can the trip setting be adjusted?
Two protection elements work together: a bimetal thermal element handles sustained overloads, and a magnetic element responds fast to short circuits. The trip range is fixed and non-interchangeable, so there is nothing to dial in and nothing to tamper with. You choose protection by picking the right amp rating at the time of order.
10) THQL plug-in breaker or a DIN rail miniature breaker, which one do I need?
It comes down to how your enclosure is built. The ABB THQL is a plug-in breaker for Q-Line load centers and panelboards, so it snaps onto the panel bus. If you are protecting circuits inside a control panel or industrial enclosure with a DIN rail, look at a DIN rail mount miniature circuit breaker such as the Square D C60 UL489 MCB, or the Square D Multi9 C60 with a C trip curve for 120V AC control work. Those are not interchangeable with Q-Line panel stabs.
11) I need more than 100 amps or a higher fault rating than the THQL offers. What else should I be looking at?
The Q-Line THQL tops out at 100 amps on the 3-pole and is a plug-in load center breaker rated 10kA. For feeder-level protection or higher interrupting duty, a molded case breaker is the right family, such as the Square D PowerPacT B thermal magnetic breaker, or the PowerPacT Q for I-Line panelboards. Those mount and connect differently and will not plug into a Q-Line load center.
12) I'm standardizing breaker stock across a portfolio of apartment buildings. Does the THQL line cover it?
For Q-Line panels, one family covers most of what a maintenance cart carries: 1-pole 15 and 20 amp for lighting and receptacles, 2-pole 30 through 50 for ranges, dryers and condensers, and 2-pole 60 through 90 or 3-pole up to 100 for larger equipment. All of them share the same plug-in Q-Line frame, the same 10kA interrupting rating, and the same UL E11592 listing, so the stocking decision is amperage and pole count only.
13) How does the ABB THQL differ from a Square D PowerPacT B thermal magnetic breaker?
Both are thermal magnetic breakers, combining a thermal element for overload with a magnetic element for short circuit response. The difference is the mounting style and the service they suit: the ABB THQL is a plug-in Q-Line breaker rated 120/240V for residential and light commercial load centers, while the Square D PowerPacT B is a molded case style breaker from the PowerPacT B series. For a branch circuit stab-in replacement in a Q-Line panel, the THQL is the direct fit.
14) Can I mix ABB THQL breakers with Square D breakers in the same panel?
Match the breaker to the panel the bus was built for. The ABB THQL is a Q-Line plug-in breaker intended for Q-Line compatible panelboards and load centers, and it is manufactured to UL Standard E11592. The Square D comparables sit in different families - the C60 UL489 MCB mounts on DIN rail and the PowerPacT Q mounts in I-Line panelboards - so they are not stab-in replacements for a Q-Line position. Standardize a Q-Line panel on THQL across the amperages you need, from 15 amp single pole up to 100 amp three pole.
How fast can I get the ABB THQL1120 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB THQL1120 come with a warranty?
Absolutely. The ABB THQL1120 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ABB THQL1120?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the ABB THQL1120 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!