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NSI Industries C-750 - Long Barrel TinnedCopperSplice750 MCM Long Barrel Tinned CopperSplices 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 C-750 Long Barrel TinnedCopperSplice750 MCM Long Barrel Tinned CopperSplices is a type of…

UPC: 662381037657


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Overview

The NSI Industries C-750 Long Barrel Tinned Copper Splice is a high-conductivity compression connector engineered for 750 MCM copper conductors with an expanded wire range of 750-500 MCM. Manufactured from premium copper tubing and tin-plated for superior corrosion resistance, this splice ensures reliable electrical connections in demanding industrial and utility applications. The long barrel design provides 4.75 inches of surface area for compression, delivering enhanced mechanical strength and conductivity compared to standard splices. Each C-750 is color-coded black and marked with die index information for quick identification and proper crimp placement, with serrations indicating optimal crimp locations when used with NSI’s N12ID dieless compression tool. The connector is rated for 90°C operation and supports up to 600V applications, with a maximum voltage rating of 35KV when installed per cable manufacturer voltage stress relief instructions. For bare splices, the maximum voltage is 5KV. The splice’s 1.03-inch inner diameter and 1.31-inch outer diameter accommodate 750 MCM conductors, while its 6.75-inch length ensures ample space for secure terminations. Trust the C-750 for critical splicing needs in high-current, high-temperature environments.
  • Engineered for 750 MCM copper conductors with expanded range of 750-500 MCM
  • Tin-plated copper construction for corrosion resistance and high conductivity
  • 90°C temperature rating and 600V maximum voltage (35KV with proper installation)
  • Color-coded black with die index markings and serrations for proper crimp placement
  • UL486A Listed Wire Connector; suitable for up to 35KV max when properly installed

Specifications

Conductor Range
750 MCM (STR)
Connection Type
Compression
Finish
Tin Plated
Material
Tinned Copper
Number Of Conductors
2
Number Of Poles
1
Size
L=4.75 - OD=1.31 - ID=1.03
Size
750 MCM
Temperature Rating
90 C
Voltage Rating
35 kV
Warranty
1 Year
Package Dimensions (L x W x H)
4.752 IN x 1.031 IN x 1.031 IN
Package Dimensions (L x W x H)
12.0701 cm x 2.6187 cm x 2.6187 cm
Package Weight (Imperial)
3.060 L
Package Weight (Metric)
1.388 kg
StandardBarrel TinnedCopperSplice750MCM Standard Barrel Tinned CopperSplices 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.

SC-750

StandardBarrel TinnedCopperSplice750MCM Standard Barrel Tinned CopperSplices 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.
Copper butt splice, long barrel, 400 kcmil cable.

SCL400-6

Copper butt splice, long barrel, 400 kcmil cable.
Cast-Copper Two-Way Reducing Splice for 10 Str Wire to 1/0 Str, Die Code 45, Die Color Code Black

251-30485-1085

Cast-Copper Two-Way Reducing Splice for 10 Str Wire to 1/0 Str, Die Code 45, Die Color Code Black
Long Barrel TinnedCopperSplice 1000 MCM Long Barrel Tinned CopperSplices 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.

C-1000

Long Barrel TinnedCopperSplice 1000 MCM Long Barrel Tinned CopperSplices 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.
StandardBarrel TinnedCopperSplice3 AWG Standard Barrel Tinned CopperSplices 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.

SC-3

StandardBarrel TinnedCopperSplice3 AWG Standard Barrel Tinned CopperSplices 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.
2Hole Short Barrel Copper Compression Lug for Flexible Copper Cable350 MCM- 1/2" 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.

GL350NB

2Hole Short Barrel Copper Compression Lug for Flexible Copper Cable350 MCM- 1/2" 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.
StandardBarrel TinnedCopperSplice1 AWG Standard Barrel Tinned CopperSplices 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.

SC-1

StandardBarrel TinnedCopperSplice1 AWG Standard Barrel Tinned CopperSplices 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.
StandardBarrel TinnedCopperSplice2 AWG Standard Barrel Tinned CopperSplices 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.

SC-2

StandardBarrel TinnedCopperSplice2 AWG Standard Barrel Tinned CopperSplices 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.

Frequently Asked Questions

What is the temperature rating of the C-750?

The C-750 has a 90°C temperature rating, making it suitable for high-temperature environments.

What are the dimensions of the C-750?

The C-750 has an inner diameter of 1.03 inches, an outer diameter of 1.31 inches, and a length of 4.75 inches.

What is the color code for the C-750?

The C-750 is color-coded black for easy identification.

What conductor sizes does the C-750 accommodate?

The C-750 is designed for 750 MCM copper conductors with an expanded range of 750-500 MCM. It is not suitable for smaller or larger conductors.

Can the C-750 be used with compact or compressed copper conductors?

Yes, the C-750 is suitable for use with concentric, compressed, or compact copper conductors.

What tools are compatible with the C-750?

The C-750 is compatible with NSI’s N12ID dieless compression tool, which offers range-taking capability for 750-500 MCM conductors. The NSI N1240 tool can also be used with all Greenlee and Ilsco dies listed.

What is the maximum operating voltage for the C-750?

The C-750 supports up to 600V in standard applications. For higher voltages, it is listed for use up to 35KV when installed according to cable manufacturer voltage stress relief instructions. Bare splices are limited to 5KV.

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 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.

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.

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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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