Authorized NSI Industries Distributor
NSI Industries GL656 - 1 Hole Short Barrel Copper Compression Lug w/ Peep Hole 6 AWG - 5/16" 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 GL656 1 Hole Short Barrel Copper Compression Lug w/ Peep Hole 6 AWG - 5/16" Bolt Short Barrel…

UPC: 662381036230


Documents & Media
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 GL656 1 Hole Short Barrel Copper Compression Lug with Peep Hole is a precision-engineered electrical termination solution designed for copper building wire in industrial, commercial, and utility applications. Manufactured from high-conductivity copper tubing and tin-plated for corrosion resistance, this compression lug delivers reliable, low-resistance connections with a 90°C temperature rating and 600V maximum voltage capability. Key specifications include a 6 AWG wire range (expandable to 8 AWG with NSI N12ID dieless compression tool), 5/16" bolt size, and a compact short barrel design optimized for tight installations. Color-coded and die-indexed for easy identification, the GL656 supports Class B or C building wire copper cable only. The 45° deep chamfered entry ensures smooth cable insertion for flexible and extra-flexible cables, while the tin-plated finish provides long-term corrosion resistance and low contact resistance. With a maximum ampacity based on NEC 310.15 standards, the GL656 is trusted in panel boards, switchgear, motor control centers, and other electrical systems requiring robust mechanical strength and consistent performance. Backed by NSI Industries' reputation for quality, the GL656 delivers precision-engineered terminations for professionals who demand dependable electrical connections in demanding environments.
  • 1-hole short barrel design for 6 AWG copper wire (expandable to 8 AWG with proper tooling)
  • 5/16" bolt size with tin-plated copper construction for corrosion resistance
  • 90°C temperature rating with 600V maximum voltage capability
  • 6 AWG wire range, 5/16" bolt size, 600V maximum voltage rating
  • Color-coded and die-indexed for easy identification and installation

Specifications

Application
Terminate, Splice, Tap Power Connectors
Cable Size
# 6 AWG (STR)
Color
Blue
Environmental Conditions
90 C
Finish
Tin Plated
Material
Copper
Mounting
5/16 Mounting Hole
Number Of Holes
1
Size
L=1.50 - W=.490 - OD=.300 - ID=.200
Special Features
# 6 AWG (STR) - 5/16 Mountign Hole
Standard
UL486A/B, UL467 (8 AWG -3/0 AWG)
Stud Size
5/16 IN
Type
Short Barrel - One Hole
Voltage Rating
600 V
Warranty
1 Year
Package Dimensions (L x W x H)
1.496 IN x 0.488 IN x 0.295 IN
Package Dimensions (L x W x H)
3.7998 cm x 12.3952 mm x 7.493 mm
Package Weight (Imperial)
1.800 L
Package Weight (Metric)
0.816 kg
15 Ton Hex Die, 125H, Stainless Steel

15603SS

15 Ton Hex Die, 125H, Stainless Steel
Die for 12 Ton 13400 or 13642M Hydrualic Tool for Crimping 210214MT Dragon Tooth Terminals

13681

Die for 12 Ton 13400 or 13642M Hydrualic Tool for Crimping 210214MT Dragon Tooth Terminals
HYD POWER TOOL FOR CRIMPING RD-RM

13642M

HYD POWER TOOL FOR CRIMPING RD-RM
Ratchet Drive Crimping Tool APPLICATIONS: Ratchet Drive Crimping Tool is for non-insulated terminals from 6 to 1/0 AWG and insulated terminals from 22 to 8 AWG. Rugged, compact, and lightweight. Requires minimum effort due to ratchet action, ensuring an excellent crimp every time. FEATURES: TYPE: Insulated and Uninsulated ACTION: Ratchet INSULATED USE: Terminals 22 to 8 AWG NON-INSULATED USE: Terminals 6 to 1/0 AWG MANUFACTURER: NSi Industries PART NUMBER: RDC 1/0 UPC: 662381055309

RDC1/0

Ratchet Drive Crimping Tool APPLICATIONS: Ratchet Drive Crimping Tool is for non-insulated terminals from 6 to 1/0 AWG and insulated terminals from 22 to 8 AWG. Rugged, compact, and lightweight. Requires minimum effort due to ratchet action, ensuring an excellent crimp every time. FEATURES: TYPE: Insulated and Uninsulated ACTION: Ratchet INSULATED USE: Terminals 22 to 8 AWG NON-INSULATED USE: Terminals 6 to 1/0 AWG MANUFACTURER: NSi Industries PART NUMBER: RDC 1/0 UPC: 662381055309
Non-Insulated Parallel Splice Connector For Wire Range #4 AWG, Circular Mil Range 33,100-52,600, Length 0.531 Diameter 0.41, Nickel Plated

F4-PS-W-NP

Non-Insulated Parallel Splice Connector For Wire Range #4 AWG, Circular Mil Range 33,100-52,600, Length 0.531 Diameter 0.41, Nickel Plated
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.

AS-K1-H6

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.
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.

1SNK705010R0000

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.
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.

1SNK705030R0000

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.
Molded Junction Box, Length 4 Inch x Width 4 Inch x Depth 2 Inch, Material Polycarbonate, Color Gray

E989NNJ-5-HD

Molded Junction Box, Length 4 Inch x Width 4 Inch x Depth 2 Inch, Material Polycarbonate, Color Gray
PVC Coated Junction Box, 12 Inch X 12 Inch X 6 Inch, 14 Gauge, Gray

A1212SC-G

PVC Coated Junction Box, 12 Inch X 12 Inch X 6 Inch, 14 Gauge, Gray

Frequently Asked Questions

What is the bolt size for the GL656?

The GL656 features a 5/16" bolt size for secure mechanical attachment in electrical systems.

What wire sizes are compatible with the GL656?

The GL656 supports 6 AWG copper wire as standard, with an expanded range of 6-8 AWG when installed using the NSI N12ID dieless compression tool.

What is the temperature rating of the GL656?

The GL656 has a temperature rating of 90°C, meeting UL486A and UL467 standards for electrical connectors.

What type of cable is compatible with the GL656?

The GL656 is designed for Class B or C building wire copper cable only, supporting flexible and extra-flexible copper conductors.

What is the maximum voltage rating for the GL656?

The GL656 has a maximum voltage rating of 600V, with a listed capability of 35KV when properly installed according to manufacturer instructions.

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

How are Tork products typically installed?

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.

How are Remke products typically installed?

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.