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Square D HOMT-1515 Homeline Quad Tandem Circuit Breaker, 120/240VAC
The Square D Homeline Quad Tandem Circuit Breaker is a plug-in miniature circuit breaker engineered for fast installation and reliable circuit protection in compatible Homeline load centers. Configured as 1 x 2 pole and 1 x 2 pole in a single quad-tandem body, this breaker is rated 120/240VAC with a 10kA AIC short circuit interrupting rating, and it is UL Listed and HACR rated for equipment overload and short-circuit protection. This listing is available with Motor FLA ratings ranging from 15A to 30A, so contractors can select the amperage that matches the connected load while the plug-in form factor, voltage rating, and interrupting rating remain constant across the family.
Key Features
- Plug-In Design: Snaps directly into compatible Homeline load centers for fast, tool-minimal installation.
- Quad Tandem Configuration: Combines 1 x 2 pole and 1 x 2 pole breaker positions in a single space-saving unit for Homeline panels.
- Voltage Rating: 120/240VAC rated operational voltage (Ue) suited to residential and light commercial distribution.
- Short Circuit Rating: 10kA AIC interrupting rating delivers dependable fault protection.
- Motor FLA Range: Available in 15A and 30A Motor FLA ratings to match the connected motor load.
- Wire Range: Accepts 1 x AWG 14...AWG 8 (aluminium/copper) conductors for flexible circuit wiring.
- Tightening Torque: 4.0-4.0 N.m for 2.5-6 mm² (AWG 14...AWG 8) terminations.
- Electrical Connection: Box lugs for secure conductor termination.
- HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment circuits.
- Ambient Operation: Rated for 40°C ambient air temperature for operation.
Certifications & Compliance
- UL Listed
- HACR Rated
Technical Specifications
- Warranty Period: Lifetime
- Product Certifications: UL Listed
- Toxic Heavy Metal Free: Yes
- Mercury Free: Yes
- Serviceability: No
- Sustainable Packaging: Yes
Typical Applications
- Residential and Commercial Electrical Panels
- Circuit Overload and Short-Circuit Protection
- Homeline Load Center Installations
- HACR-Rated Equipment Circuits (Heating, AC, Refrigeration)
- Panelboard Upgrades and Replacements
Why Square D?
Square D backs the Homeline Quad Tandem Circuit Breaker with a Lifetime Warranty, UL Listing, and HACR rating, giving contractors and homeowners confidence in code-compliant, reliable circuit protection across the 15A-30A Motor FLA range. Its plug-in design and box lug termination make it a practical choice for maintaining and upgrading Homeline load centers.
Manufacturer Resources
Product Specs
- Product Type:
- Circuit Breaker
- Series:
- Homeline
- Voltage Rating:
- 120/240VAC
- Listing:
- UL Listed
- Connection Type:
- Box Lugs
- Department:
- Electrical
- Product Group:
- Circuit Protection
- Configuration:
- Quad Tandem
- Amperage Rating:
- 15A-30A
- Standards:
- HACR Rated
- Product Subgroup:
- Circuit Breakers
- Product Height:
- 3.13 in
Square D HOMT1515 – Frequently Asked Questions
1) Will a Square D HOMT-1515 quad tandem breaker fit any load center, or only Homeline panels?
Only Homeline. The HOMT-1515 is a plug-in miniature breaker that snaps into compatible Square D Homeline load centers, and the panel also has to be designed to accept quad (tandem) breakers in those positions. It will not work in a QO panel or in another brand's load center, and it will not fit a bolt-on panelboard.
2) What does the quad tandem configuration on the Homeline HOMT-1515 actually give me in panel spaces?
It packs 1 x 2 pole plus 1 x 2 pole into a single quad-tandem body, so you get two two-pole circuits out of the footprint a quad position occupies. That is the reason to reach for it: a full Homeline panel where you still need to add two 240V circuits without replacing the load center.
3) What wire size can I land on the Square D HOMT-1515 breaker terminals?
Box lug terminals accept one conductor from AWG 14 through AWG 8, aluminum or copper. Tightening torque is 4.0 N.m for those 2.5 to 6 mm2 (AWG 14 to AWG 8) terminations. If your circuit calls for larger than #8, this is not the breaker for it.
4) Can I use the Homeline quad tandem breaker on an air conditioner or heat pump circuit?
Yes. The breaker is HACR rated, so it is suitable for heating, air conditioning and refrigeration equipment circuits, and it is UL Listed for overload and short-circuit protection. Match the amp rating to the equipment nameplate; the family covers 15A to 30A Motor FLA.
5) Which amp rating of the Square D HOMT quad tandem do I order, and what are the part numbers?
Two Motor FLA ratings are offered: 15A, ordered as HOMT1515, and 30A, ordered as HOMT230250. Voltage rating, plug-in form factor and interrupting rating are the same on both, so amperage is the only decision.
6) Can an Eaton BAB bolt-on breaker be used in place of a Square D Homeline quad tandem?
No. The Square D HOMT-1515 Homeline quad tandem is a plug-in breaker that snaps into compatible Homeline load centers, and the quad tandem body occupies two full spaces while delivering two 2-pole circuits. The Eaton BAB Quicklag thermal-magnetic breaker is a bolt-on design, which fastens to the bus with screws and requires a panel with bolt-on provisions. The two mounting methods are not interchangeable, so a Homeline panel needs the Homeline plug-in unit.
7) Is an ABB ST200M miniature circuit breaker an alternative to the Square D Homeline quad tandem?
They are not interchangeable. The ABB ST200M is a C-curve miniature circuit breaker listed to UL1077, which covers supplementary protectors rather than branch circuit protection, and it mounts on DIN rail in control panels. The Square D HOMT-1515 is a UL Listed, HACR rated plug-in branch breaker for 120/240VAC Homeline load centers. For panelboard branch circuit protection, the Homeline unit is the correct part.
8) Is a 10kA interrupting rating enough for my service, and what voltage is this breaker good for?
The HOMT-1515 is rated 120/240VAC with a 10kA AIC short-circuit interrupting rating, which covers typical residential and light commercial distribution. If your available fault current at the panel exceeds 10kA, you need a higher-interrupting device, not this one.
9) What is the difference between this Homeline plug-in breaker and a bolt-on breaker like the Eaton BAB?
The Homeline quad tandem snaps onto the bus in a Homeline load center, no mounting screw involved. A bolt-on unit such as the Eaton BAB Series Quicklag thermal-magnetic breaker fastens to the panelboard bus with hardware and is used in panelboards built for bolt-on mounting. The two are not interchangeable; the panel's bus style decides which one you can buy.
10) Can I use the Homeline HOMT quad tandem for a three-phase or industrial panelboard circuit?
No. It is a single-phase 120/240VAC residential and light commercial device. For a three-pole application you are looking at a molded case breaker such as the ABB A2A150TT in the A2 Series or the Eaton BAB-302 three-pole Quicklag at 240V.
11) What is the difference between the Square D HOMT-1515 and an Eaton BAB 3-pole Quicklag breaker for a 240V panel?
Both are rated for 240V service, but they solve different problems. The Square D HOMT-1515 is a 120/240VAC quad tandem that packs two 2-pole circuits into one space-saving plug-in body for Homeline load centers. The Eaton BAB-302 Quicklag is a three-pole industrial thermal-magnetic breaker rated 240V, intended for three-phase loads. If the circuit is three-phase, the quad tandem will not serve it; if you are adding single-phase 120/240V branch circuits in a Homeline panel, the three-pole unit does not fit.
12) Would a Bussmann CBC or CBF circuit breaker work for a heating or AC circuit instead of the Homeline quad tandem?
No. The Bussmann CBC series is a Type I automotive circuit breaker rated 14VDC and the CBF is a Type II automotive breaker, both intended for low-voltage vehicle and equipment wiring. The Square D HOMT-1515 is rated 120/240VAC and HACR rated specifically for heating, air conditioning, and refrigeration equipment circuits in a Homeline load center.
13) When should I specify a molded case breaker like the ABB A2A150TT instead of a Homeline quad tandem?
Use a molded case breaker when the application is a feeder or large three-phase load rather than a residential or light commercial branch circuit. The ABB A2A150TT is a 3-pole molded case breaker in the A2 series, and ABB's XT4 and XT5 kits are likewise 3-pole molded case units. The Square D HOMT-1515 quad tandem is a plug-in miniature breaker rated 120/240VAC with a 10kA interrupting rating, sized for branch circuits in Homeline panels where panel space is tight.
14) Is the Eaton 10250T undervoltage release an accessory I can add to the Homeline quad tandem?
No. The Eaton 10250T-GR is an undervoltage release for Eaton NZM series molded case circuit breakers and is not a Homeline accessory. The Square D HOMT-1515 is a non-serviceable plug-in quad tandem with box lug terminations, and it is installed as a complete unit without field-added trip accessories.
15) What ambient temperature is the Homeline quad tandem breaker rated for?
40 degrees C ambient air for operation. In a panel mounted in an unconditioned attic or a hot mechanical room that is the number to check against, since sustained higher ambient affects thermal trip behavior.
16) I need a breaker for a 400A mining feeder - is the Homeline quad tandem suitable?
No. The Square D HOMT-1515 is a 120/240VAC plug-in branch breaker offered across a 15A to 30A range. For heavy feeder duty, the Eaton 6602C72G67 Series C K-frame mining circuit breaker is a 400A 3-pole unit with an interchangeable rating plug, which is a different class of device entirely.
17) Is the Square D HOMT quad tandem breaker field serviceable if it trips repeatedly?
No. It is a non-serviceable sealed device, so a breaker that will not hold gets replaced rather than repaired. Country of origin is Mexico, and the unit is mercury free and free of toxic heavy metals.
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Absolutely. The Square D HOMT1515 is backed by a manufacturer’s warranty.
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