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NSI Industries AL750N - 2HoleStandard BarrelAluminum Compression Lug 750 MCM -1/2 Bolt Standard BarrelAluminum Compression Lugs is a type ofaluminum compression connector that is produced from high conductivityaluminum tubing.Center stop assures proper cable installation.They are tin-plated to provide corrosion resistance and are marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed.
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NSI Industries AL750N 2HoleStandard BarrelAluminum Compression Lug 750 MCM -1/2 Bolt Standard BarrelAluminum…

UPC: 662381031105


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Technical BulletinInstallation Instructions

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The NSI Industries AL750N is a high-conductivity aluminum compression lug engineered for reliable electrical terminations in medium to high-voltage applications. Manufactured from premium aluminum tubing with electro-tin plating, this two-hole standard barrel lug ensures corrosion resistance and long-term performance in demanding environments. The center stop design prevents over-insertion, guaranteeing proper cable installation and secure connections. The AL750N is dual-rated for both aluminum and copper conductors, accommodating wire ranges from 750 MCM down to 500 MCM. Its yellow color coding and die index markings streamline tool selection and installation processes, reducing setup time and minimizing errors. The lug features a 1/2" bolt size for secure mounting, with a barrel outer diameter of 1.598 inches and inner diameter of 1.032 inches. The overall length measures 7.370 inches, with a barrel length of 3.201 inches and tang length of 0.937 inches. The tang thickness is 0.547 inches, and the mounting hole diameter is 0.508 inches with 1.750-inch spacing. Pre-filled with oxide inhibitor and capped for immediate use, the AL750N is optimized for use with NSI N1240 or N121D crimp tools for expanded wire range compatibility. This product is designed for applications requiring 35kV maximum voltage ratings when properly installed according to cable manufacturer specifications.
  • Dual-rated for aluminum and copper conductors (750-500 MCM)
  • Electro-tin plated for superior corrosion resistance
  • Center stop ensures proper cable insertion and prevents over-insertion
  • Yellow color coding and die index markings for easy identification
  • Pre-filled with oxide inhibitor and capped for immediate use

Specifications

Cable Size
750 MCM (STR)
Connection Type
Compression
Current Rating
750 MCM
Environmental Conditions
90 C
Finish
Tin Plated Bronze
Material
Aluminum
Mounting Type
2 x 1/2" bolt holes
Number Of Holes
2
Series
AL
Size
750 MCM
Stud Size
1/2 IN
Voltage Rating
35 kV
Warranty
1 Year
Package Dimensions (L x W x H)
7.37 IN x 2.189 IN x 1.6 IN
Package Dimensions (L x W x H)
18.7198 cm x 5.5601 cm x 4.064 cm
Package Weight (Imperial)
2.400 L
Package Weight (Metric)
1.089 kg
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Frequently Asked Questions

What is the bolt size for mounting the AL750N?

The AL750N features a 1/2" bolt size for secure mounting.

What is the color code for the AL750N?

The AL750N is color-coded yellow for easy identification.

Is the AL750N pre-filled with any protective compound?

Yes, the AL750N is pre-filled with oxide inhibitor and capped for immediate use.

What is the maximum voltage rating for this lug?

The AL750N is listed for a maximum of 35kV when properly installed according to cable manufacturer specifications.

How to Install Aluminum Compression Connectors

This guide provides step-by-step instructions for installing aluminum compression connectors, ensuring a secure and reliable electrical connection.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Wire brush

Supplies needed:

Aluminum compression connectors, Cable

  1. Select the appropriate connector

    Choose the correct lug or splice connector based on the size of the cable being installed, ensuring it matches the specifications in the provided chart.

  2. Strip the cable insulation

    Carefully strip the insulation from the conductor without nicking the strands, leaving enough length to fully insert the stripped conductor into the connector barrel.

  3. Clean the conductor

    Use a wire brush to clean the stripped portion of the conductor, removing any oxide films to ensure a good electrical connection.

  4. Insert the conductor into the connector

    Insert the cleaned and stripped conductor completely into the connector barrel, ensuring it fills the barrel completely.

  5. Crimp the connector

    Using the appropriate crimping tool, crimp the connector according to the manufacturer's specifications, ensuring the number of crimps is per side for a splice connector.

  6. Verify the connection

    Inspect the crimped connection to ensure it is secure and that there are no visible gaps or loose strands.

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