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NSI Industries GL3048 - 1 HoleShort Barrel Copper Compression Lug w/ PeepHole3/0 AWG-1/2" Bolt Short Barrel Copper Compression Lugs with PeepHoleis 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 GL3048 1 HoleShort Barrel Copper Compression Lug w/ PeepHole3/0 AWG-1/2" Bolt Short Barrel…

UPC: 662381036124


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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

NSI Industries GL3048 3/0 AWG Short Barrel Copper Compression Lug with Peep Hole is a high-conductivity copper connector engineered for heavy-duty electrical terminations in medium-voltage systems. Manufactured from premium copper tubing with a tin-plated finish, this lug delivers corrosion resistance and low contact resistance for reliable long-term performance. Designed for wire ranges from 3/0 AWG to 2 AWG and accommodating a 1/2" bolt size, the GL3048 supports Class B or C building wire per NEC 310.15 ampacity requirements. Its short barrel design optimizes space in tight enclosures while maintaining mechanical strength, making it ideal for industrial, commercial, and utility applications. The lug features a 90°C temperature rating and a 600V voltage rating, with a maximum 35kV rating when properly installed per manufacturer instructions. Color-coded (orange) and die-indexed for easy identification, the GL3048 is UL486A and UL467 listed for grounding and bonding applications. The connector’s flared end ensures ease of cable insertion for flexible and extra-flexible cables, such as locomotive, welding, and mining cables, while reducing pressure on cable strands to prevent chafing and breakage. Part of NSI Industries’ GL Series, this lug meets cULus standards (155027) and is distributed by Gross Automation for immediate availability.
  • Produced from high conductivity copper tubing
  • Peep hole allows easy inspection of the termination to assure complete cable insertion
  • Tin-plated to provide corrosion and low contact resistance.
  • Marked with die index and color coded - Orange
  • Listed for 35KV maximum when properly install applications greater than 2000V, installed to cable manufacturervoltage stress relief instructions.

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
3/0 AWG (STR)
Color
Orange
Connection Type
Compression Lug
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Material
Copper, Tin-Plated
Mounting
1/2 Mounting Hole
Mounting Type
Single Hole with Peep Hole
Number Of Holes
1
Series
GL Series
Size
3/0 AWG to 2 AWG, 1/2" Bolt
Size
L=2.36 - W=.900 - OD=.620 - ID=.490
Special Features
3/0 AWG (STR) - 1/2 Mounting Hole
Standard
UL486A/B, UL467 (8 AWG -3/0 AWG)
Stud Size
1/2 IN
Type
Short Barrel - One Hole
Voltage Rating
600 V
Voltage Rating
600 V (35 kV max)
Warranty
1 Year
Package Dimensions (L x W x H)
2.362 IN x 0.902 IN x 0.622 IN
Package Dimensions (L x W x H)
5.9995 cm x 22.9108 mm x 15.7988 mm
Package Weight (Imperial)
1.900 L
Package Weight (Metric)
0.862 kg
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Power Distribution Block (1) 2/0-14 AWG Primary (6) 4-14 AWG Secondary Power Distribution Blocks are made of high strength, high-conductivity aluminum alloy and are mounted in a high-strength glass-filled polyester base. Each block can stand alone or combine with other blocks to form a multi-block set.

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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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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.

Frequently Asked Questions

What wire sizes are compatible with the GL3048?

The GL3048 supports wire ranges from 3/0 AWG to 2 AWG.

What is the bolt size for the GL3048?

The GL3048 accommodates a 1/2" bolt size.

What is the temperature rating of the GL3048?

The GL3048 has a temperature rating of 90°C.

What is the voltage rating of the GL3048?

The GL3048 is rated for 600V, with a maximum of 35kV when properly installed.

Is the GL3048 UL listed?

Yes, the GL3048 is UL486A and UL467 listed for grounding and bonding applications.

What is the purpose of the peep hole in the GL3048?

The peep hole allows visual confirmation of proper cable insertion during installation.

What type of cables is the GL3048 designed for?

The GL3048 is designed for Class B or C building wire copper cables.

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, Cable

  1. Strip the conductor

    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

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

  4. Crimp the connector

    Using the appropriate crimping tool, apply pressure 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.

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.

What environmental ratings do Tork products have?

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.

What communication protocols do Tork products support?

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.

What are the key features of Tork products?

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.

What are the main product lines offered by Tork?

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.

What technical support does Tork offer?

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.

What industries and applications are Tork products used for?

Tork products are utilized across a variety of industries, including food processing, healthcare, hospitality, and manufacturing. They are designed for applications such as hand hygiene, surface cleaning, and dispensing solutions, ensuring efficiency and compliance in environments that require high standards of cleanliness and safety.

What certifications and standards do Tork products comply with?

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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Remke products are typically installed through a systematic process that includes site audits to verify proper wiring, followed by remote or on-site commissioning. This commissioning involves installation verification, programming, and communication testing to ensure the system operates reliably and meets design specifications.

What accessories are available for Remke products?

Remke offers a wide range of accessories for their products, including panel mounting kits, fuse holders for voltage inputs, ferrites for communication modules, and current transformers. These accessories enhance the functionality and protection of Remke's industrial automation solutions, ensuring reliable performance in various applications.