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NSI Industries L750N - 2 Hole Long Barrel Copper Compression Lug 750 MCM-1/2" Bolt - 1 3/4" Mounting Hole Spacing Long Barrel Copper Compression Lugs is a type of copper compression connector that is produced from high conductivity copper tubing. 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.
NSI Industries

L750N

UPC: 662381035196


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Overview

The NSI Industries L750N is a high-conductivity copper compression lug designed for robust electrical terminations. Constructed from premium copper tubing, this long barrel lug ensures superior conductivity and low contact resistance, crucial for reliable power distribution. Its tin-plated finish provides excellent corrosion resistance, extending the lifespan of the connection in various industrial environments. The L750N features two mounting holes with a spacing of 1 3/4 inches and accommodates a 1/2 inch bolt size, making it versatile for a range of applications. It is rated for 750 MCM wire range and is listed for 35KV maximum when properly installed according to manufacturer instructions. This lug is UL486A Listed for wire connectors and UL467 Listed for grounding and bonding applications (for wire sizes 8 AWG - 3/0 AWG). The maximum ampacity is determined by NEC 310.15, insulation type, and conductor material; always consult your current NEC manual for specific calculations. Operating at a temperature rating of 90°C and a voltage rating of 600V, the L750N is built for demanding electrical systems. For applications exceeding 2000V, adhere to the cable manufacturer's voltage stress relief instructions. Each lug is clearly marked with its die index and color-coded for easy identification and proper tool selection during installation, simplifying inventory management and ensuring correct application. This product is manufactured in the USA, ensuring quality and compliance with domestic standards. The L750N is an essential component for secure and durable electrical connections in power transmission, distribution, and industrial equipment.
  • Constructed from high-conductivity copper tubing for optimal electrical performance.
  • Tin-plated for superior corrosion resistance and low contact resistance.
  • Two-hole design with 1 3/4" mounting hole spacing for secure installation.
  • Rated for 750 MCM wire range and 1/2" bolt size.
  • UL486A Listed Wire Connector and UL467 Listed for Grounding & Bonding (8 AWG - 3/0 AWG).

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
750 MCM (STR)
Color
Black
Connection Type
Compression
Current Rating
750 MCM
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
1/2 Mounting Holes
Mounting Type
Long Barrel
Number Of Holes
2
Poles
2
Size
L=6.30 - W=1.90 - OD=1.31 - ID=1.04
Size
750 MCM-1/2" Bolt
Special Features
750 MCM (STR) - 1/2 Mounting Hole - 1 3/4 Hole Spacing
Standard
UL486A/B
Stud Size
1/2 IN
Type
Long Barrel - Two Hole
Voltage Rating
600 V
Voltage Rating
35 kV
Warranty
1 Year
Package Dimensions (L x W x H)
6.3 IN x 1.9 IN x 1.31 IN
Package Dimensions (L x W x H)
16.002 cm x 4.826 cm x 3.3274 cm
Package Weight (Imperial)
3.450 L
Package Weight (Metric)
1.565 kg
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How to Install the L750N Copper Compression Connectors

This guide provides step-by-step instructions for installing L750N copper compression connectors, ensuring secure and reliable electrical connections.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Multimeter

Supplies needed:

Copper compression connectors, Wire brush, Terminal connectors

  1. Select the appropriate connector

    Choose the correct size of copper compression connector based on the cable size you are installing, ensuring it matches the specifications in the provided chart.

  2. Strip the conductor

    Carefully strip the insulation from the conductor to the required length, ensuring not to nick the strands. The stripped conductor should fit completely into the barrel of the connector.

  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

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

  5. Crimp the connector

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

  6. Verify the connection

    Use a multimeter to check the continuity of the connection, ensuring that it is secure and functioning properly.

Frequently Asked Questions about NSI Industries

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Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

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Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

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Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

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Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

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Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

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