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NSI Industries L138 - 1 Hole Long Barrel Copper Compression Lug 1 AWG - 3/8" Bolt Long Barrel Copper Compression Lugs are produced from high conductivity copper tubing. They are tin-plated to provide corrosion low contact resistance. Marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed and to cable manufacturer instructions. Temperature rating 90 degrees C. .

NSI Industries L138 1 Hole Long Barrel Copper Compression Lug 1 AWG - 3/8" Bolt Long Barrel Copper…

UPC: 662381034052


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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 L138 is a high-conductivity copper compression lug designed for reliable electrical terminations. This long barrel, one-hole lug is engineered from premium copper tubing, ensuring excellent conductivity and durability for demanding applications. Its tin-plated finish provides superior corrosion resistance and maintains low contact resistance, crucial for long-term performance and preventing power loss. The L138 is specifically designed for 1 AWG wire and features a 3/8" bolt size for secure mounting. It is marked with a clear die index and color-coded (Green) for easy identification and proper tool selection during installation, simplifying inventory management and reducing the risk of errors. This lug is UL486A Listed as a wire connector and UL467 Listed for grounding and bonding applications (for wire sizes 8 AWG - 3/0 AWG). It is rated for a maximum of 600V and a temperature rating of 90°C, making it suitable for a wide range of industrial and commercial power distribution systems. Furthermore, the L138 is listed for 35KV maximum when properly installed according to cable manufacturer instructions. For applications exceeding 2000V, it is essential to consult the cable manufacturer for specific voltage stress relief instructions. The long barrel design ensures a more robust and secure connection, minimizing the potential for conductor pull-out and enhancing overall system integrity. Trust the NSI L138 for your critical power connections where performance and reliability are paramount.
  • Constructed from high conductivity copper tubing for superior electrical performance.
  • Tin-plated finish provides excellent corrosion resistance and low contact resistance.
  • Long barrel design ensures a robust and secure connection, minimizing conductor pull-out.
  • Marked with die index and color-coded (Green) for easy identification and proper tool selection.
  • UL486A Listed as a wire connector and UL467 Listed for grounding and bonding (8 AWG - 3/0 AWG).

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
# 1 AWG (STR)
Color
Green
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
3/8 Mounting Hole IN
Number Of Holes
1
Size
L=1.10 - W=.673 - OD=.469 - ID.358
Special Features
# 1 AWG (STR) - 3/8 Mounting Hole
Standard
UL486A/B, UL467 (8 AWG -3/0 AWG)
Stud Size
3/8 IN
Type
Long Barrel - One Hole
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
2.209 IN x 0.673 IN x 0.469 IN
Package Dimensions (L x W x H)
5.6109 cm x 17.0942 mm x 11.9126 mm
Package Weight (Imperial)
2.750 L
Package Weight (Metric)
1.247 kg
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PT1/0

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1 Hole Long Barrel Copper Compression Lug 4/0 AWG - 3/8" Bolt Long Barrel Copper Compression Lugs are produced from high conductivity copper tubing. They are tin-plated to provide corrosion low contact resistance. Marked with die index and color coded for easy reference. Listed for 35KV maximum when properly installed and to cable manufacturer instructions. Temperature rating 90 degrees C. .

L4038

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PTS600

Solid Pin Terminal for Copper and Aluminum Conductors 600 MCM All-aluminum Pin Terminals is designed for termination of both aluminum and copper conductors. The solid pin is made of aluminum and is tin-plated and pre-filled with oxide inhibitor. A cover is provided for quick installation. Rated 600 Volts.
Solid Pin Terminal for Copper and Aluminum Conductors 500 MCM All-aluminum Pin Terminals is designed for termination of both aluminum and copper conductors. The solid pin is made of aluminum and is tin-plated and pre-filled with oxide inhibitor. A cover is provided for quick installation. Rated 600 Volts.

PTS500

Solid Pin Terminal for Copper and Aluminum Conductors 500 MCM All-aluminum Pin Terminals is designed for termination of both aluminum and copper conductors. The solid pin is made of aluminum and is tin-plated and pre-filled with oxide inhibitor. A cover is provided for quick installation. Rated 600 Volts.
Stranded Bi-Metallic Pin Terminal 600 MCM Stranded Bi-Metallic Pin Terminals is designed to facilitate termination of aluminum conductors. Tin-plated stranded copper pin. Connector bores are coated with oxide inhibitor. Supplied with EPDM insulating cover. UL 486B listed. Rated 600 volts.

PT600

Stranded Bi-Metallic Pin Terminal 600 MCM Stranded Bi-Metallic Pin Terminals is designed to facilitate termination of aluminum conductors. Tin-plated stranded copper pin. Connector bores are coated with oxide inhibitor. Supplied with EPDM insulating cover. UL 486B listed. Rated 600 volts.

Frequently Asked Questions

What wire sizes are compatible with the NSI L138 lug?

The NSI L138 lug is designed for 1 AWG wire. It is also UL467 Listed for grounding and bonding applications for wire sizes ranging from 8 AWG to 3/0 AWG.

What is the maximum voltage rating for this lug?

The NSI L138 lug is rated for a maximum of 600V. It is also listed for 35KV maximum when properly installed according to cable manufacturer instructions.

What is the temperature rating of the L138 compression lug?

The NSI L138 compression lug has a temperature rating of 90°C.

What is the purpose of the tin plating on this lug?

The tin-plated finish on the NSI L138 lug provides superior corrosion resistance and helps maintain low contact resistance for long-term performance.

What does the color coding on the lug signify?

The lug is color-coded Green, which aids in easy identification and ensures the proper tool selection during installation.

How to Install Copper Compression Connectors

This guide provides step-by-step instructions for installing copper compression connectors, ensuring secure and reliable electrical connections.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Wire brush

Supplies needed:

Copper compression connectors, Insulated wire

  1. Strip the wire insulation

    Carefully strip the insulation from the conductor to a length that allows the stripped conductor to fill the barrel of the connector completely.

  2. 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.

  3. Insert the conductor into the connector

    Insert the cleaned and stripped conductor completely into the connector barrel, ensuring it is fully seated.

  4. Crimp the connector

    Use the appropriate crimping tool to crimp the connector securely onto the conductor, following the manufacturer's suggested crimp locations.

  5. 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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