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NSi Industries Aluminum Dual-Rated Set-Screw Lug, 6061T-6 Alloy
Model: NSI-0T
NSi Industries Aluminum Dual-Rated Set-Screw Lug, 6061T-6 AlloyThe NSi Industries Aluminum Dual-Rated Set-Screw Lug is a versatile, reusable mechanical connector built from 6061T-6 aluminum alloy for...
NSi
Starting at
$5.29
NSi Industries Aluminum Dual-Rated Transformer Lug, 6-Port, 350 MCM - 6 AWG
The NSi Industries Aluminum Dual-Rated Transformer Lug is a 6-port, 4 mounting hole connector built from 6061-T6 aluminum alloy for superior electrical and mechanical performance. Sized for a 350 MCM - 6 AWG wire range with NEMA 1-3/4" mounting hole spacing, this dual-rated lug accepts copper or aluminum conductors and is rated 600 Volts with a 90 degrees C temperature rating. It meets or exceeds ANSI C119.4 Class A for dependable transformer and switchgear terminations.
Key Features
- Wire Range: Accommodates 350 MCM - 6 AWG conductors across 6 ports for multi-conductor terminations.
- Durable Construction: Made from high-strength 6061-T6 aluminum alloy for superior electrical and mechanical performance.
- Set-Screw Connection: Two set screws per wire hole ensure an exceptional, reusable connection.
- Dual-Rated: Suitable for use with copper or aluminum conductors.
- Voltage Rating: Rated 600 Volts with a 90 degrees C maximum temperature rating.
- Mounting: 4 mounting holes with NEMA 1-3/4" hole spacing for standard installation.
- Finish: Electro-tin plated for low contact resistance.
Certifications & Compliance
- Meets or Exceeds ANSI C119.4 Class A
Technical Specifications
- INNER WIDTH: 6.1
- INNER LENGTH: 8.8
- WARRANTY: 1 Year
- Product Series: T
- Number of Mounting Holes: 4
- Number of Conductors/Circuits/Terminals: 6
Typical Applications
- Transformer and Switchgear Terminations
- Commercial and Industrial Electrical Installations
- Panelboard and Load Center Wiring
- Copper-to-Aluminum Conductor Transitions
- Renovation and New Construction Projects
Why NSi Industries?
NSi Industries builds this transformer lug from 6061-T6 aluminum alloy with an electro-tin plated finish for low contact resistance and reliable, code-compliant performance. Meeting or exceeding ANSI C119.4 Class A, it delivers a reusable, dual-rated termination solution trusted for professional electrical work.
Manufacturer Resources
Product Specs
- Product Size:
- 350 MCM - 6 AWG
- Sub-Division:
- Electrical-E H2
- ANSI:
- ANSI C119.4 Class A
- Division:
- Electrical H1
- Max Temperature:
- 90 C
- WARRANTY:
- 1 Year
- Series:
- T
- Number of Mounting Holes:
- 4
- Hole Spacing:
- 1.75 IN
- Field Application:
- Terminate
- Voltage Rating:
- 600V
- Hex Wrench Size:
- 8-Mar IN
- Number of Conductors/Circuits/Terminals:
- 6
- Conductor Type:
- Copper, Aluminum
- Country of Origin:
- United States
- Product Material:
- 6061T-6 Aluminum Alloy
- Product Finish:
- Tin Plated
- Product Type:
- Transformer Lug
- Connection Type:
- Set Screw
- Department:
- Electrical
- Product Group:
- Wiring Devices
NSi 6-350T4 – Frequently Asked Questions
1) Will the NSi 6-350T4 transformer lug accept both copper and aluminum conductors?
Yes, the 6-350T4 is dual rated for copper or aluminum conductors, so you can land either one in any port and use it for copper-to-aluminum transitions. The body is 6061-T6 aluminum alloy with an electro-tin plated finish to keep contact resistance down on either metal.
2) What wire sizes fit the NSi 6-350T4 lug?
Each of the six ports takes conductors from 350 MCM down to 6 AWG. Anything larger than 350 MCM or smaller than 6 AWG needs a different lug. Two set screws per hole clamp the conductor, and the connection is reusable if you have to pull and re-land a wire.
3) Will this NSi lug bolt onto a standard NEMA transformer pad?
It has 4 mounting holes on NEMA 1-3/4 inch hole spacing, which is the standard two-hole-per-row NEMA pattern found on transformer and switchgear terminal pads. If your pad is drilled on a different spacing, this one will not line up.
4) Can I land six separate feeders on one NSi 6-350T4 lug?
Yes, that is the point of it. Six ports on a single bolted body let you take one transformer or switchgear pad and break it out to six conductors, instead of stacking multiple single-port lugs on the same pad. All six ports share the same 350 MCM to 6 AWG range, so the runs can be mixed sizes within that window.
5) Does this NSi lug meet ANSI C119.4 for utility and switchgear terminations?
It meets or exceeds ANSI C119.4 Class A, the connector standard specified on most transformer and switchgear work, which is why it turns up on spec-driven commercial and industrial jobs. It is made in the United States.
How fast can I get the NSi 6-350T4 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 NSi 6-350T4 come with a warranty?
Absolutely. The NSi 6-350T4 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 NSi 6-350T4?
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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and
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Our team is always ready to help you choose the right product for your project.