ABB ReliaHome T-Series Main Br...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$419.54
ABB ReliaHome T-Series Main Breaker Load Center, 100A Copper Bus

ABB ReliaHome T-Series Main Breaker Load Center, 100A Copper Bus

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Model: TMQ1210RCU

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

$419.54
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ABB ReliaHome T-Series Main Breaker Load Center, 100A Copper Bus

The ABB ReliaHome T-Series Main Breaker Load Center arrives with a main breaker factory-installed for a convenient, swift installation. The main breaker lets the user stop the flow of electricity through the load center, shutting off all power to the residence from a single point. This load center features a 100A bus ampere rating, a copper bus, and spaces for 12, 1" breakers, and is housed in an outdoor-suitable enclosure that is UL listed for code-compliant residential electrical service.

Key Features

  • Main Breaker Installed: Factory-installed main breaker allows the user to stop the flow of electricity to the entire load center for a fast, safe install and a convenient service disconnect.
  • 100A Bus Ampere Rating: Rated for a 100A bus ampere capacity to support typical residential electrical service demands.
  • Copper Bus: Copper bus construction delivers reliable current-carrying performance across the load center.
  • 12, 1" Breaker Spaces: Provides spaces for 12, 1" breakers for flexible circuit configuration.
  • Outdoor Suitable Enclosure: Enclosure is rated for outdoor installation, suited to exterior service entrance applications.
  • 120/240V ac, 1 Phase, 3-Wire: Configured for 120/240V ac single-phase, 3-wire residential service.
  • 22 Interrupt Rating: Rated with a 22 interrupt rating for circuit protection performance.

Certifications & Compliance

  • UL Listed
  • Outdoor-Suitable Enclosure

Technical Specifications

  • Number Of Feeders: Top
  • Interrupt Rating: 22
  • Standard: UL
  • Country of Origin: UKN

Typical Applications

  • Residential Electrical Service Panels
  • Main Service Disconnect Installations
  • Outdoor Service Entrance Equipment
  • New Construction and Panel Replacement Projects

Why ABB?

ABB builds the ReliaHome T-Series load center with a copper bus and a factory-installed main breaker to simplify installation while supporting dependable electrical service. UL listing and an outdoor-suitable enclosure back this load center for long-term, code-compliant performance in residential applications. Choose ABB for main breaker load centers engineered for straightforward, reliable installation.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Load Center
Amperage Rating:
100A
Voltage Rating:
120/240V AC
Configuration:
Main Breaker
Listing:
UL Listed
Product Material:
Copper
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Panelboards & Load Centers

ABB TMQ1210RCU – Frequently Asked Questions

1) Does the ABB TMQ1210RCU load center come with the main breaker already installed, or do I buy it separately?
The main breaker is factory-installed on the ABB ReliaHome T-Series TMQ1210RCU. It is a 100A main breaker configuration, so the panel arrives with its service disconnect in place and you only need to add branch breakers. That is the difference between this and a main lugs panel, where you would need a separate upstream disconnect.
2) Can the ABB T-Series 100A load center be mounted outside on a service entrance?
Yes. The TMQ1210RCU enclosure is outdoor suitable and UL Listed, so it can be used as exterior service entrance equipment as well as indoors. Feeders enter at the top.
3) How many circuits will the ABB ReliaHome T-Series 100A panel hold?
It has 12 spaces sized for 1 inch breakers. Using full-size single-pole breakers that is 12 circuits; each two-pole breaker for a range, dryer, or AC consumes two of those spaces, so plan the count before you commit. For a 100A service with several 240V loads, 12 spaces fills up quickly.
4) What service does the ABB TMQ1210RCU panel work with, 120/240V single phase?
It is built for 120/240V AC single-phase, 3-wire service, which is standard residential power in North America. It is not a three-phase panel, so for a commercial 208Y/120 three-phase service you need a different load center.
5) Main breaker panel or main lugs, which one do I need for a house service?
If this panel is the service entrance equipment, you need a main breaker so there is a single disconnect for the whole dwelling, which is what the ABB TMQ1210RCU gives you factory-installed. Main lugs panels, like the Square D Homeline and QO convertible main lugs units, are for subpanels fed from an upstream breaker, or for service use only where a separate disconnect is provided ahead of them.
6) What is the difference between the ABB TMQ1210RCU load center and a Square D QO main lugs load center?
The ABB ReliaHome T-Series TMQ1210RCU is a main breaker configuration, meaning the disconnect breaker is factory-installed so the panel shuts off all power to the residence from a single point. The Square D QO Convertible Main Lugs Load Center is a main lugs panel, which has no integral main disconnect and relies on upstream overcurrent protection. If the opening is a service entrance that needs its own disconnect at the panel, the main breaker configuration of the ABB unit is the one to specify; a main lugs panel is the choice for a downstream subpanel fed from an existing main.
7) I need a much larger panel than the 100A ABB T-Series - what else is available?
The ABB ReliaHome T-Series TMQ1210RCU is a 100A, 12-space panel on 120/240V AC single-phase service, sized for typical residential loads. For a substantially larger distribution job, the Square D Homeline 60-Space 120-Circuit 225A Convertible Main Lugs Load Center steps up to 225A with 60 spaces. Note that the Homeline unit is a main lugs panel in a NEMA 1 enclosure, so it is an indoor-rated panel without an integral main breaker, whereas the ABB unit is an outdoor-suitable enclosure with the main breaker installed.
8) Can I use a Square D Homeline load center outdoors instead of the ABB TMQ1210RCU?
The Square D Homeline 225A Convertible Main Lugs Load Center is specified with a NEMA 1 enclosure, which is an indoor general-purpose rating. The ABB ReliaHome T-Series TMQ1210RCU is housed in an outdoor-suitable, UL listed enclosure and is intended for exterior service entrance applications. For a panel mounted on the outside of the building, the ABB T-Series enclosure is the one built for that location.
9) Is the bus copper or aluminum on the ABB T-Series load center?
Copper. The TMQ1210RCU uses a copper bus rather than plated aluminum, which is often what a spec or an inspector calls for on a service panel. The CU in the part number is the copper bus designation.
10) What is the interrupt rating on the ABB 100A ReliaHome load center?
22 is the stated interrupt rating for the TMQ1210RCU. That number matters when the utility transformer is close to the building and available fault current is high, so check it against the fault current your service calculation produces before you set the panel.
11) I need a bigger panel than 12 spaces, what else do you carry?
The ABB T-Series TMQ1210RCU tops out at 12 spaces on a 100A main. If you need far more circuits, the Square D Homeline 60-space 120-circuit 225A convertible main lugs load center is a much larger NEMA 1 panel, but note it ships as main lugs, so you supply the disconnect upstream, and NEMA 1 means indoor only. The Square D QO convertible main lugs load center with plug-on neutral is the other main lugs option if you want QO breakers and plug-on neutral AFCI/GFCI devices.
12) Are branch breakers included with the ABB TMQ1210RCU load center?
Only the 100A main breaker is included, factory-installed. Branch circuit breakers are ordered separately, and they need to be ABB/ReliaHome-compatible 1 inch breakers to fit the 12 spaces. Budget for AFCI and GFCI devices on the circuits your local code requires them on.
13) Is the Square D QO panel a direct replacement for an ABB ReliaHome T-Series panel?
It is not a drop-in swap. The ABB ReliaHome T-Series TMQ1210RCU uses a copper bus with 12 one-inch breaker spaces and a factory-installed main breaker. The Square D QO Convertible Main Lugs Load Center is a plug-on neutral panel in the QO series, which takes QO-series breakers rather than ABB T-Series breakers, and it ships as main lugs. Changing panel families means changing the branch breakers as well, so plan the breaker inventory alongside the enclosure.
14) Where can I get the full spec sheet for the ABB ReliaHome T-Series TMQ1210RCU?
ABB publishes a PDF spec sheet for the TMQ1210RCU, linked on the product record, and it is the document to hand an inspector or attach to a submittal package for enclosure dimensions and wire bending space.
How fast can I get the ABB TMQ1210RCU 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 TMQ1210RCU come with a warranty?
Absolutely. The ABB TMQ1210RCU 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 TMQ1210RCU?
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
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