NSI Industries GL500N - 2 Hole Short Barrel Copper Compression Lug w/ Peep Hole 500 MCM - 1/2" Bolt Short Barrel Copper Compression Lugs with Peep Hole 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

GL500N

UPC: 662381036575


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Technical BulletinInstallation Instructions

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Overview

The NSI Industries GL500NB is a high-conductivity copper compression lug designed for reliable electrical terminations. This short barrel lug features two mounting holes and a peep hole for easy visual inspection of complete cable insertion, ensuring a secure connection. Manufactured from premium copper tubing, it is tin-plated to provide superior corrosion resistance and low contact resistance, crucial for long-term performance in demanding applications. The GL500NB is rated for 600V maximum and 90°C temperature. It is specifically designed for 500 MCM copper conductors and features a 1/2" bolt size for secure fastening. The lug is marked with die index and color-coded for straightforward identification and application. It is UL486A Listed and cULus Listed, meeting stringent industry standards. For applications exceeding 2000V, proper installation according to cable manufacturer's voltage stress relief instructions is required. This lug is ideal for use with flexible and extra-flexible copper cables, including those found in diesel locomotive, welding, and mining equipment, due to its gentle, continuous flare that eases cable insertion and protects strands from damage during movement. The mounting hole spacing (D) is 1.75 inches, and the barrel length (B1) is 1.54 inches, with an overall length (L) of 3.34 inches and a width (W) of 4.88 inches. The end of the connector to the center (A) is 3.34 inches, and the tang length (B) is 1.54 inches. The tang thickness (C) is 0.540 inches, and the mounting hole diameter (E) is 0.500 inches. Each standard carton contains 3 units. Trust NSI Industries for robust and dependable electrical connection solutions.
  • Constructed from high-conductivity copper tubing for optimal electrical performance.
  • Tin-plated finish provides excellent corrosion resistance and low contact resistance.
  • Features a peep hole for visual verification of complete cable insertion.
  • Rated for 600V maximum and 90°C temperature.
  • UL486A Listed and cULus Listed for reliable and safe use.

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
500 MCM (STR)
Color
Brown
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
1/2 Mounting Holes
Number Of Holes
2
Size
L=4.88 - W=1.54 - OD=1.06 - ID=.840
Special Features
500 MCM (STR) - 1/2 Mountiong Holes - 1 3/4 Hole Spacing
Standard
UL486A/B
Stud Size
1/2 IN
Type
Short Barrel - Two Hole
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
4.882 IN x 1.539 IN x 1.063 IN
Package Dimensions (L x W x H)
12.4003 cm x 3.9091 cm x 2.7 cm
Package Weight (Imperial)
4.080 L
Package Weight (Metric)
1.851 kg
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Combine high performance with compact dimensions: - 1000 V AC / DC IEC 600 V UL, - Opt for the best marking visibility thanks to the up-front, flat marker zone, which lets you mark up to eight digits or increase the font size.

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Combine high performance with compact dimensions: - 1000 V AC / DC IEC 600 V UL, - Opt for the best marking visibility thanks to the up-front, flat marker zone, which lets you mark up to eight digits or increase the font size.

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How to Install Copper Compression Connectors

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

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 without nicking the strands, ensuring the stripped length allows for complete insertion into the connector barrel.

  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 fills the barrel fully.

  4. Crimp the connector

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

  5. Verify the connection

    Check the crimped connection for security and ensure there are no visible gaps between the connector and the conductor.

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 diverse range of products primarily focused on industrial automation, including TORK® Photocontrols, lighting controls, and various electrical components such as enclosures, occupancy sensors, and grounding solutions. These products are designed to enhance efficiency and reliability in commercial and industrial applications.

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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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Tork products comply with UL and cUL certifications, ensuring they meet rigorous safety and performance standards. Additionally, many models are designed to meet NEMA enclosure ratings, providing protection against environmental factors.

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