ABB TL-SCU Main Lug Load Cente...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$44.70
ABB TL-SCU Main Lug Load Center, 2-Circuit Indoor Surface Enclosure

ABB TL-SCU Main Lug Load Center, 2-Circuit Indoor Surface Enclosure

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Model: TL270SCU

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

$44.70
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ABB TL-SCU Main Lug Load Center, 2-Circuit Indoor Surface Enclosure

The ABB TL-SCU is a main lug load center built for use as a home's main panel or sub panel, featuring space for 2, 1" breakers in a durable indoor surface-mount enclosure. This family is available in bus ampere ratings from 40 amperes to 70 amperes, so you can match the panel to your circuit-load needs while keeping the same rugged construction. Rated up to 60/75 degree centigrade, this ABB load center is suitable for use with service entrance equipment when installed in accordance with electrical code, and supports 120/240V ac, 1 phase, 3-wire load regulation. With a 65 kA interrupt rating and UL-listed construction, the TL-SCU delivers dependable, code-compliant power distribution for residential and light commercial installations.

Key Features

  • Breaker Space: Accommodates 2, 1" breakers for compact circuit distribution.
  • Bus Ampere Rating: Available in 40A and 70A options to suit main or sub panel applications.
  • Enclosure Type: Indoor surface-mount enclosure for straightforward wall-mounted installation.
  • Load Regulation: 120/240V ac, 1 phase, 3-wire configuration.
  • Interrupt Rating: 65 kA interrupt rating for robust fault protection.
  • Feeder Flexibility: Either main lug or feeder configuration depending on installation needs.
  • Temperature Rating: Rated up to 60 degree/75 degree centigrade for reliable performance.

Certifications & Compliance

  • UL Standard
  • Suitable for use with service entrance equipment when installed in accordance with electrical code

Technical Specifications

  • Amperage Rating: 40A - 70A
  • Configuration: Indoor Surface Mount
  • Standards: UL
  • Interrupt Rating: 65 kA
  • Load Regulation: 120/240V ac
  • Wiring Configuration: 3 Wire
  • Phase: 1 Phase
  • Number Of Feeders: Either

Typical Applications

  • Residential Main Panel Installations
  • Sub Panel Distribution
  • Service Entrance Equipment Wiring
  • Indoor Surface-Mount Panel Upgrades
  • New Construction and Renovation Electrical Work

Why ABB?

ABB load centers are engineered for dependable, code-compliant power distribution, backed by a 65 kA interrupt rating, UL-standard construction, and a temperature rating up to 60 degree/75 degree centigrade. The TL-SCU family's main lug design and indoor surface enclosure, offered across the 40A to 70A ampere range, make it a solid choice for electricians and contractors seeking reliable panel performance in residential and light commercial settings.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Load Center
Amperage Rating:
40A - 70A
Voltage Rating:
120/240V
Configuration:
Indoor Surface Mount
Standards:
UL
Department:
Electrical
Product Group:
Wiring Devices
Listing:
UL Listed
Product Subgroup:
Panelboards & Load Centers

ABB TL270SCU – Frequently Asked Questions

1) How many breakers fit in the ABB TL240SCU load center?
The TL240SCU holds two 1-inch breakers, with a 40A bus rating. That makes it a small panel for a limited load, not a whole-house replacement. If you need more headroom on the same footprint style, the 70 ampere version is the TL270SCU.
2) Can an ABB TL240SCU be used as a sub panel, or only as a main?
Either. It is a main lug load center and the feeder configuration can go either way, so it works as a small main panel or as a fed sub panel. Used as service entrance equipment it is suitable when installed per electrical code.
3) Can I mount the ABB TL240SCU outside on an exterior wall?
No. The TL240SCU enclosure is indoor, surface mount only. For a pump, well head, or exterior disconnect location you need a rainproof or NEMA 3R rated enclosure instead.
4) Is a 40A 2-circuit ABB panel enough, or do I need a full-size load center?
The TL240SCU is a 2-space, 40A panel. It suits a garage feed, a small addition, a well house, or a single piece of equipment. For a dwelling service or anything needing real circuit count, go to a full-size load center like the Square D Homeline 60-space 120-circuit 225A convertible main lugs unit or the Square D QO convertible main lugs plug-on neutral panel.
5) I need more than two circuits in the panel - what load center should I look at instead of the ABB TL240SCU?
The TL240SCU holds space for two 1-inch breakers on a 40A bus, so once a job needs more branch circuits it is the wrong enclosure. The Square D Homeline convertible main lugs load center in the 60-space, 120-circuit, 225A configuration covers the other end of that range in a NEMA 1 enclosure, and the Square D QO convertible main lugs load center is the plug-on neutral option in the same family of panels. Both are convertible, meaning they can be set up as main lugs like the ABB or converted for a main breaker, while the TL240SCU is fixed as a main lug or feeder panel at 120/240V AC, 1 phase, 3 wire.
6) Can I use Square D Homeline or QO breakers in an ABB TL240SCU?
No. The TL240SCU is an ABB panel and takes ABB breakers sized for its two 1-inch spaces; Homeline and QO are Square D breaker systems, and the Square D Homeline 225A load center and the Square D QO plug-on neutral load center are each built around their own series bus. Treat the panel and the breakers as a matched set - pick the brand of load center first, then buy branch breakers in that same series.
7) My spec calls for a plug-on neutral panel - does the ABB TL240SCU meet that?
The TL240SCU is a UL listed main lug load center rated 120/240V AC, 1 phase, 3 wire with a 65 kA interrupt rating, and it is described as a main lug or feeder panel rather than a plug-on neutral design. If the drawing specifically calls for plug-on neutral so that AFCI and GFCI breakers land without pigtails, the Square D QO convertible main lugs load center is the plug-on neutral panel in the comparable set, in a NEMA 1 enclosure.
8) What voltage and wiring does the ABB TL240SCU 2-circuit panel support?
120/240V AC, single phase, 3-wire. That is the standard residential split-phase feed, so it accepts either 120V single-pole circuits or a 240V two-pole load across both spaces.
9) What is the interrupt rating on the ABB TL240SCU?
65 kA. The panel is also UL listed, so it clears typical available fault current at a residential or light commercial service point without needing a separate series rating workaround.
10) Is there a larger amperage version of the ABB TL240SCU?
Yes, two amperage builds exist in this family: the TL240SCU at 40 amperes and the TL270SCU at 70 amperes. Same indoor surface enclosure approach, so spec the 70A version if the feeder or connected load exceeds 40A.
11) For a small sub panel feeding a garage or a couple of circuits, is the TL240SCU enough or should I step up to a full-size panel?
For two circuits, the ABB TL240SCU is the compact answer: 40A bus, two 1-inch breaker spaces, indoor surface-mount enclosure, and it can be wired as either a main lug or a feeder panel. A 70A version, the TL270SCU, is available in the same body if the feeder is sized larger. Step up to something like the Square D Homeline convertible main lugs load center at 225A with 60 spaces only when the sub panel is expected to grow or serve a whole structure - that is a different class of enclosure entirely, not a drop-in for a two-circuit surface box.
12) The panel is going on an exterior wall - is the ABB TL240SCU an option?
No. The TL240SCU enclosure is specified as indoor surface mount, so it should stay in a dry interior location. The Square D Homeline 225A convertible main lugs load center and the Square D QO plug-on neutral load center are both NEMA 1 enclosures, which is also an indoor rating - for an exposed exterior wall you need a panel with a rainproof enclosure rating, not any of these three.
13) Where can I get the full spec sheet for the ABB TL240SCU?
ABB publishes a PDF spec sheet for the TL240SCU covering the panel's published ratings and construction details. It's the document to hand an inspector alongside the UL listing when the panel is used as service entrance equipment.
How fast can I get the ABB TL270SCU 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 TL270SCU come with a warranty?
Absolutely. The ABB TL270SCU 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 TL270SCU?
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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