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Square D NQFTL NQ Feed-Thru Lug Kit, Panelboard Accessory
Model: SQU-NQFTL
Square D NQFTL NQ Feed-Thru Lug Kit, Panelboard AccessoryThe Square D NQFTL NQ Feed-Thru Lug Kit is a panelboard accessory engineered for NQ and NF Panelboards rated 54 circuits or higher, available...
Square D
Starting at
$875.24
Square D NF Panelboard Feed-Thru Lug Kit, 125A, Aluminum
The Square D NF Panelboard Feed-Thru Lug Kit is a factory-engineered accessory for NQ and NF Panelboards, rated 125A and designed for aluminum conductor terminations from AWG 6 through 350 kcmil. Built for modular panelboards with field-installable construction, this kit lets contractors and OEMs extend or reconfigure a panelboard on-site without replacing the entire assembly. The kit ships complete with a cover extension, screw set, rail splices, rail extensions, and lugs, and carries cULus certification for code-compliant installations.
Key Features
- Amperage Rating: 125A feed-thru lug kit for NQ and NF panelboard installations.
- Conductor Material: Aluminum lug construction sized for AWG 6...350 kcmil conductors.
- Tightening Torque: 6.8-7.3 N.m across the 13.3-177.3 mm² (AWG 6...350 kcmil) conductor range for a secure, code-compliant termination.
- Complete Kit Contents: Includes 1 cover extension, 1 screw set, 2 rail splices, 2 rail extensions, and 4 lugs for a ready-to-install accessory package.
- Modular Design: Field-installable construction allows on-site design changes and easy modification or extension of the panelboard.
- Factory-Assembled Option: Ready-to-assemble kit maximizes job productivity and design flexibility for panelboard upfits.
Certifications & Compliance
- cULus Listed
- ROHS Eur Compliant
- Mercury Free
- Toxic Heavy Metal Free
Technical Specifications
- Toxic Heavy Metal Free: Yes
- Warranty: 18 months
- Warranty Period: 18 months
- Sustainable Packaging: No
- Mercury Free: Yes
- Packaging Without Single Use Plastic: No
- ROHS Eur In Scope: Yes
- Recycled Metal Content At Cr Level: 0 %
- With Recycled Cardboard: Yes
- Country of Origin: Mexico
- Returnability: Yes
Typical Applications
- Commercial and Industrial Panelboard Installations
- NQ and NF Panelboard Upgrades and Conversions
- Feed-Thru Lug Additions for Service Extensions
- On-Site Design Changes and Field Modifications
- New Construction and Renovation Electrical Work
Why Square D?
Square D engineers the NQ and NF panelboard accessory line for modular, field-installable flexibility, so contractors and OEMs can adapt panelboards on-site without full replacement. This feed-thru lug kit is cULus listed, mercury free, and toxic heavy metal free, backed by an 18-month warranty for dependable, code-compliant performance on commercial electrical projects.
Manufacturer Resources
Product Specs
- Product Type:
- Lug & Neutral Kit
- Amperage Rating:
- 125A
- Listing:
- cULus
- Standards:
- ROHS Eur
- Product Material:
- Aluminum
- Department:
- Electrical
- Product Group:
- Power Distribution
- Product Subgroup:
- Panelboards & Load Centers
Square D NF125FTL – Frequently Asked Questions
1) Will the Square D NF125FTL feed-thru lug kit work in an NQ panelboard, or only NF?
The NF125FTL feed-thru lug kit is engineered for both NQ and NF panelboards. It is a factory-engineered accessory for those two families, rated 125A, and it is field installable so you can add feed-thru capability to an existing panel interior rather than swapping the whole assembly.
2) What size conductors can I land on the Square D NF125FTL lug kit?
The lugs accept AWG 6 through 350 kcmil, which is 13.3 to 177.3 square millimeters. They are aluminum-bodied lugs, so verify your conductor material against the lug marking for the run you are feeding through.
3) What torque do I tighten the NF125FTL feed-thru lugs to?
Tightening torque is 6.8 to 7.3 N.m, and that figure applies across the whole AWG 6 to 350 kcmil (13.3-177.3 mm2) conductor range. Use a calibrated torque wrench or screwdriver, since an untorqued aluminum termination is the usual cause of a hot lug on a feed-thru.
4) What comes in the Square D NF125FTL kit, and do I need to order anything else to make the panel fit?
The kit ships with 1 cover extension, 1 screw set, 2 rail splices, 2 rail extensions, and 4 lugs. The rail splices, rail extensions, and cover extension are what let the interior and trim grow to accommodate the added feed-thru lugs, so the mechanical side of the conversion is covered. Your conductors, raceway, and any additional panel trim for the enclosure are separate.
5) Will the 125A NF feed-thru lug kit handle a 225A panelboard?
No. This kit is rated 125A, so it should not be applied where the feed-thru current exceeds that rating. For a larger NF panel you need the feed-thru lug kit matched to that panel's ampere rating, not this one.
6) Is an NSi Industries 2024 stacked neutral bar an alternative to the Square D NF125FTL feed-thru lug kit?
No. The NSi Industries 2024 is a 24-circuit stacked neutral bar in aluminum, which adds neutral termination points inside an enclosure. The Square D NF125FTL is a 125A feed-thru lug kit for NQ and NF panelboards that terminates aluminum phase conductors from AWG 6 through 350 kcmil and ships with a cover extension, screw set, 2 rail splices, 2 rail extensions, and 4 lugs so the panelboard can be extended in the field. One gives you neutral landing capacity, the other gives you a feed-thru tap for the main bus, so they solve different problems and are not interchangeable.
7) Is this feed-thru lug kit listed for code-compliant commercial work?
The NF125FTL kit is cULus Listed, which covers it for both US and Canadian installations. It is also ROHS Eur compliant, mercury free, and toxic heavy metal free. Manufactured in Mexico.
8) Can a feed-thru lug kit be added to an NF panelboard already installed in the field, or does this have to be factory ordered?
Field installable. The kit is built for on-site design changes, so an electrician can convert or extend an existing NQ or NF panelboard in place instead of replacing the interior. That is the point of the modular accessory line: upfits and renovation work where the panel is already on the wall.
9) Is a feed-thru lug kit the same thing as a neutral bar kit for a panelboard?
No. The NF125FTL is a feed-thru lug kit, which gives you a second set of line-side terminations so one panel can feed a downstream panel without a separate tap. A neutral bar kit just adds grounded-conductor termination points, for example the NSi Industries 2024 24-circuit stacked neutral bar. If you have run out of neutral landing spots, you want a neutral bar. If you need to carry service through the panel, you want the feed-thru lugs.
10) What is the exact part number for the Square D NF 125A feed-thru lug kit?
Order it as Square D NF125FTL. One model covers the kit, so there is no handing, finish, or configuration choice to make when you specify it.
How fast can I get the Square D NF125FTL 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 Square D NF125FTL come with a warranty?
Absolutely. The Square D NF125FTL 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 Square D NF125FTL?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
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