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NSI Industries GL70058B - 1 Hole Short Barrel Copper Compression Lug for Flexible Copper Cable 700 MCM- 5/8" Bolt Compression lugs for flexible copper cables are connects that have a gentle, continuous flared end to ensure ease of cable insertion of flexible and extra flexible cables such as locomotive, welding, mining cable and more. The flared end also reduces pressure on the cable strands after installation and protects them from chafing and breakage as a result of cable movement. Tin-plated for corrosion resistance. Rated 600 volts for copper cables only. Single mounting hole.

NSI Industries GL70058B 1 Hole Short Barrel Copper Compression Lug for Flexible Copper Cable 700 MCM- 5/8" Bolt…

UPC: 662381336538


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Installation Instructions

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Minimum Qty: 3

Multiplier: 3

*Contact for lower quantities*

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

Overview

The NSI Industries GL70058B is a single-hole, short barrel copper compression lug engineered for terminating 700 MCM flexible copper cables with a 5/8" bolt. Designed for demanding industrial applications, this lug features a gently flared entry that simplifies cable insertion for flexible and extra-flexible conductors—common in locomotive, welding, and mining cables. The flared design minimizes strand pressure after installation, reducing chafing and breakage from cable movement. Constructed from high-conductivity copper tubing and tin-plated for corrosion resistance, the GL70058B maintains low contact resistance over time. It includes a peep hole for visual confirmation of full cable insertion, ensuring a secure termination. Key specifications include a 0.984" barrel ID, 1.240" barrel OD, 5.669" length, and 1.722" width. The lug is rated for 600 volts and operates at 90°C. Compatible with NSI’s N12ID dieless compression tool, it supports expanded wire ranges when used with specified tooling. For precise crimping requirements, refer to NSI’s tool/die compatibility table. This lug is part of the GL-B Series, optimized for heavy-duty electrical connections where cable flexibility and durability are critical.
  • Single-hole short barrel design for 700 MCM flexible copper cables
  • Gentle flared entry eases insertion of flexible/extra-flexible conductors
  • Tin-plated copper construction resists corrosion and maintains low contact resistance
  • Peep hole confirms full cable insertion for secure termination
  • Rated 600V, 90°C; compatible with NSI N12ID dieless compression tool

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
700 MCM (STR)
Color
Pink
Connection Type
Compression Lug
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
5/8 Mounting Hole
Mounting Type
Single Hole
Number Of Holes
1
Size
L=4.37 - W=1.90 - OD=1.31 - ID=1.03
Size
700 MCM, 5/8" Bolt
Special Features
700 MCM (STR) - 5/8 Mounting Hole
Standard
UL486A/B
Stud Size
5/8 IN
Type
Short Barrel - One Hole - Belled End
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
4.37 IN x 1.95 IN x 1.311 IN
Package Dimensions (L x W x H)
11.0998 cm x 4.953 cm x 3.3299 cm
Package Weight (Imperial)
2.160 L
Package Weight (Metric)
0.980 kg
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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 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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