COL400-14 Partex copper tube ring terminal, 400mm², M14 stud, pack 5

Why Choose the Partex COL400-14 Copper Tube Ring Terminal?

The Partex COL400-14 is a heavy-duty copper tube ring terminal designed for secure electrical termination of 400 mm² copper conductors. Featuring an M14 stud fixing, this large-section crimp cable lug provides a practical solution for connecting substantial copper power cables to compatible electrical equipment, busbars and bolted terminals.

Part of the Partex COL copper tube terminal range, the COL400-14 combines a robust tubular crimp barrel with a flat ring-type fixing palm. Its copper construction supports efficient electrical conductivity, while the straight terminal configuration allows a direct connection between the cable and equipment fixing point. When installed using correctly matched crimping equipment, the terminal provides a secure mechanical and electrical interface for demanding industrial applications.

Designed for 400 mm² copper cables and M14 bolted connections, the COL400-14 is suitable for heavy-duty power distribution, industrial switchgear, electrical distribution cabinets and large electrical equipment assemblies. Supplied in a pack of 5 terminals, it offers a convenient quantity for specialist electrical installations, panel manufacturing, maintenance work and equipment upgrades.

Key Advantages

• 400 mm² conductor compatibility for large-section copper power cables.
• M14 stud fixing enables secure bolted connections to compatible equipment terminals and busbars.
• Copper construction supports efficient electrical current transfer.
• Heavy-duty tubular barrel provides a dedicated crimp termination point for substantial copper conductors.
• Straight ring terminal design supports direct cable connection to bolted electrical fixing points.
• Crimp connection method provides mechanical retention and electrical continuity when correctly installed.
• Ring-type fixing palm provides a stable connection interface with compatible electrical equipment.
• Suitable for industrial power distribution, switchgear and heavy-duty electrical assemblies.
• Pack of 5 terminals provides a practical quantity for specialist installation and maintenance projects.

Key Features

• Partex COL series copper tube crimp terminal.
• 400 mm² nominal conductor cross-section.
• M14 stud connection for compatible bolted electrical terminations.
• Straight ring terminal configuration.
• Copper terminal body for conductive electrical connections.
• Tubular crimp barrel for termination of large copper conductors.
• Flat ring-type fixing palm for attachment to equipment studs and busbars.
• Designed for use with copper power cables.
• Requires appropriately matched 400 mm² crimping equipment and dies.
• Uninsulated construction for integration with suitable electrical insulation and protective arrangements.
• Suitable for professional electrical installation and industrial equipment assembly.
• Supplied as a pack of 5 pieces.

Secure Termination of Large-Section Copper Power Cables

Terminating 400 mm² copper conductors requires components and installation methods suited to substantial cable sizes. The Partex COL400-14 provides a tubular barrel for crimping onto the conductor and a flat ring palm for fastening to an M14 connection point. This arrangement is useful in heavy-duty electrical distribution systems where large power cables must be connected securely to equipment terminals or busbars.

The terminal's straight configuration is suitable where the cable can approach the connection point in line with the fixing palm. Its copper body provides the conductive path between the crimped conductor and the bolted connection. Because large-section power cables can be relatively difficult to route, installers should allow sufficient space for the cable's specified minimum bending radius and ensure the finished termination is not subjected to excessive mechanical strain.

Correct installation is essential for reliable operation. The conductor should be prepared without damaging its strands, fully inserted into the terminal barrel and crimped using tooling and dies approved for the relevant terminal and conductor combination. The M14 fixing should be tightened according to the connected equipment manufacturer's instructions. Appropriate insulation, clearances, cable support and protection should be provided for the installation. The permissible operating current depends on the complete cable and connection assembly rather than the terminal size alone.

Typical Applications

• Heavy-duty industrial power distribution systems.
• Low-voltage switchgear and distribution assemblies where compatible.
• Large electrical distribution boards and cabinets.
• Busbar connections with M14 fixing points.
• Industrial electrical equipment and machinery.
• High-capacity copper power cable termination.
• Electrical panel manufacturing and OEM equipment assembly.
• Industrial electrical maintenance and refurbishment.
• Power distribution installations using 400 mm² copper conductors.
• Bolted cable connections to compatible M14 equipment terminals.