You may also like
ABB ReliaHome T-Series Main Breaker Load Center, 100A Copper Bus
Model: ABB-TMQ1210RCU
ABB ReliaHome T-Series Main Breaker Load Center, 100A Copper BusThe ABB ReliaHome T-Series Main Breaker Load Center arrives with a main breaker factory-installed for a convenient, swift installation...
ABB
$419.54
ABB ReliaHome T-Series Main Lug Load Center, Indoor Surface Enclosure
The ABB ReliaHome T-Series Main Lug Load Center is a convertible load center that ships as main lug only (MNLUG) but retains the capability to have a main breaker installed later, giving installers flexibility for service entrance or sub-panel use. Built with a copper bus rated up to 125A and housed in an indoor surface enclosure, this UL listed panel is rated for 120/240V ac, 1 phase, 3-wire load regulation and is suitable for use with service entrance equipment when installed in accordance with electrical code.
Key Features
- Convertible Main Lug Design: Ships as main lug only with the capability to add a main breaker, supporting either service entrance or feeder-fed configurations.
- Copper Bus, Up to 125A: Copper bus construction rated up to 125A bus ampere rating for reliable current-carrying capacity.
- Breaker Space: Provides space for 1" breakers, with configurations supporting 6-8 circuit panels and an optional door.
- Indoor Surface Enclosure: Enclosure is designed for indoor surface-mount installation.
- 120/240V ac, 1 Phase, 3-Wire: Rated load regulation of 120/240V ac, 1 phase, 3-wire for standard residential and light commercial circuits.
- 22 Interrupt Rating: Rated interrupt rating of 22 for dependable circuit protection.
- Temperature Rated 60°C/75°C: Rated up to 60 degree/75 degree centigrade for stable performance under load.
Certifications & Compliance
- UL Listed
- Suitable for Use with Service Entrance Equipment When Installed per Electrical Code
Technical Specifications
- Interrupt Rating: 22
- Standard: UL
- Country of Origin: UKN
- Number Of Feeders: Either
- Load Regulation: 120/240V ac
- Phase: 1 Phase
- Enclosure: Indoor
- Wiring Configuration: 3 Wire
- Amperage Rating: 125A
Typical Applications
- Residential Service Entrance Panels
- Sub-Panel Circuit Distribution
- Indoor Surface-Mount Electrical Installations
- Renovation and New Construction Panel Upgrades
Why ABB?
ABB ReliaHome T-Series load centers combine copper bus construction with UL listed performance, rated up to 60 degree/75 degree centigrade for dependable operation under real-world loads. The convertible main-lug-to-main-breaker design gives electrical professionals a code-compliant, flexible foundation for residential and light commercial power distribution, backed by ABB's reputation for durable electrical infrastructure.
Manufacturer Resources
Spec Sheet
Product Specs
- Listing:
- UL Listed
- Amperage Rating:
- 125A
- Product Group:
- Wiring Devices
- Product Type:
- Load Center
- Voltage Rating:
- 120/240V
- Department:
- Electrical
- Product Subgroup:
- Panelboards & Load Centers
ABB TLMQ812SCUD – Frequently Asked Questions
1) Can the ABB ReliaHome T-Series TLMQ load center be used as a service entrance panel, or only as a sub-panel?
Either. The TLMQ ships main lug only but is convertible, so a main breaker can be added later. As shipped with lugs it works as a feeder-fed sub-panel; it is also suitable for use with service entrance equipment when installed per electrical code, which is where you would add the main breaker for service disconnect duty.
2) How many circuits does the ABB TLMQ 125A load center hold?
Two builds: the TLMQ612SCUD is the 6-circuit panel and the TLMQ812SCUD is the 8-circuit. Both take 1 inch breakers, so circuit count is spaces, not tandem-expanded capacity. Pick the 8-circuit if you want room for future additions, since the enclosure is fixed once mounted.
3) Is this ABB panel rated for outdoor mounting on the side of a house?
No. The TLMQ enclosure is an indoor surface-mount design only. For an exterior meter-side or garage-exterior location you need a rainproof outdoor-rated enclosure instead. Indoors it surface mounts, so it sits on the wall face rather than recessing into the stud bay.
4) I need a lot more circuits than the ABB ReliaHome TLMQ panel gives me. What should I use instead?
The ABB ReliaHome T-Series main lug load center is built around small circuit counts, with 6-circuit (TLMQ612SCUD) and 8-circuit (TLMQ812SCUD) configurations on a copper bus rated up to 125A. For a whole-house or large distribution panel, step up to the Square D Homeline 60-space, 120-circuit, 225A convertible main lugs load center in a NEMA 1 enclosure. It is also a convertible main lug design, so it can take a main breaker later the same way the ABB panel can, but at 225A with far more spaces it suits a full service rather than a small sub-panel or feeder tap.
5) What is the Square D equivalent to the ABB ReliaHome TLMQ main lug load center?
The closest Square D counterpart is the Square D QO Convertible Main Lugs Load Center, a NEMA 1 plug-on neutral panel from the QO series. Like the ABB ReliaHome T-Series TLMQ612SCUD and TLMQ812SCUD, it ships as main lugs with the convertible capability to add a main breaker later, so it can serve either as a service entrance panel or a feeder-fed sub-panel. The ABB panel is rated 125A, 120/240V ac, 1 phase, 3 wire in an indoor surface enclosure and is UL listed. The QO difference to note is the plug-on neutral bus, which changes which breakers land on the panel and how AFCI/GFCI pigtails are handled.
6) What voltage and wiring configuration does the ABB ReliaHome TLMQ load center take?
120/240V ac, single phase, 3-wire. That is the standard residential and light commercial split-phase arrangement, two hots and a neutral, with the panel giving you both 120V branch circuits and 240V two-pole circuits. It is not a three-phase panel.
7) Does the ABB TLMQ load center have a copper bus or aluminum?
Copper bus, rated up to 125A. Copper matters to spec-driven jobs and to institutional buyers who write copper-bus-only into their electrical spec, and it holds the 60C/75C conductor temperature rating the panel is listed to.
8) Can I add a main breaker to the ABB TLMQ after it is already installed as a sub-panel?
That is the point of the convertible design. The panel ships main lug only and retains the capability to have a main breaker installed later, so a sub-panel fed from a larger board can be converted to a service disconnect arrangement without swapping the enclosure. Size the main breaker to the 125A bus rating.
9) For a small indoor sub-panel feeding a few circuits, is the ABB ReliaHome TLMQ or a Square D QO panel the better fit?
Both are convertible main lug panels that can be fed from a feeder and later accept a main breaker. The ABB ReliaHome T-Series TLMQ is the more compact choice, with 6-circuit and 8-circuit versions, a copper bus rated up to 125A, 120/240V ac 1 phase 3 wire load regulation, and an indoor surface enclosure that is UL listed. The Square D QO Convertible Main Lugs Load Center is a NEMA 1 plug-on neutral panel from the QO line, which matters if the building is already standardized on QO breakers or you want plug-on neutral AFCI/GFCI devices. Match whichever breaker line the rest of the property already uses.
10) Can I drop a Square D Homeline panel in where an ABB ReliaHome TLMQ load center is mounted?
Treat them as different panels rather than a swap. The ABB ReliaHome T-Series TLMQ is a 125A, 120/240V ac indoor surface enclosure sized for 6 or 8 one-inch breaker spaces, while the Square D Homeline L225PC is a 60-space, 120-circuit 225A NEMA 1 enclosure - a physically much larger box on a different footprint and a different feeder size. Breakers are not interchangeable between the two lines either. If you are replacing an ABB panel in the same location and keeping the existing feeder, stay with the ABB T-Series; if you are upsizing the service, plan on new enclosure cutouts and conductors.
11) Will Square D QO or Homeline breakers fit the ABB ReliaHome T-Series load center?
No - do not plan on it. The ABB ReliaHome T-Series TLMQ provides space for 1 inch breakers on ABB's own bus, while the Square D QO Convertible Main Lugs Load Center uses a plug-on neutral QO bus and the Square D Homeline L225PC uses the Homeline bus. A panel that looks like a substitute at the enclosure level is not one at the breaker level, and a classified breaker is the only route across lines. Order the breakers from the same line as the panel you install.
12) Does the ABB TLMQ load center come with a door?
A door is an option on the configurations, not a given. If you are mounting the panel in a finished space, a laundry room, a hallway closet, or a unit interior where a property manager wants the breakers covered, specify the door version. In a utility or mechanical room a doorless cover is common.
How fast can I get the ABB TLMQ812SCUD 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 TLMQ812SCUD come with a warranty?
Absolutely. The ABB TLMQ812SCUD 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 TLMQ812SCUD?
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 TLMQ812SCUD 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.