COL400-20 Partex copper tube ring terminal, 400mm², M20 stud, pack 5

Why Choose the Partex COL400-20 Copper Tube Ring Terminal?

The Partex COL400-20 is a robust copper tube ring terminal designed for secure electrical cable termination in industrial power distribution, switchgear and heavy-duty electrical equipment installations. Suitable for 400 mm² copper conductors, this terminal features an M20 stud connection, providing a practical solution for connecting large copper power cables to compatible threaded studs, busbars and bolted electrical connection points.

As part of the Partex COL copper tube terminal range, the COL400-20 provides a dependable cable termination solution for electrical installations requiring effective electrical conductivity and secure mechanical fastening. Its copper construction supports efficient current transfer, while the tubular crimp barrel and ring-shaped connection palm enable a reliable electrical and mechanical connection when correctly installed using compatible crimping equipment.

Combining a 400 mm² nominal conductor size, an M20 ring connection and a convenient pack quantity of 5 terminals, the Partex COL400-20 is well suited to professional electricians, electrical contractors, panel builders and industrial maintenance teams working with large copper power cables in electrical distribution assemblies, industrial machinery and power infrastructure. Its straight terminal configuration makes it suitable for conventional bolted cable termination arrangements where adequate installation clearance and mechanical cable support are available.

Key Advantages

• Heavy-duty copper tube ring terminal designed for secure termination of large copper power cables.
• 400 mm² conductor compatibility for suitable copper cable termination applications.
• M20 stud hole enables attachment to compatible threaded studs and bolted electrical connection points.
• Copper construction provides excellent electrical conductivity and supports efficient current transfer.
• Ring-shaped connection palm supports secure mechanical fastening to electrical equipment and busbar assemblies.
• Straight terminal configuration provides a practical solution for conventional cable termination arrangements.
• Crimp termination provides a reliable electrical and mechanical connection when correctly installed.
• Pack of 5 provides a practical quantity for specialist electrical installation, maintenance and panel-building projects.

Key Features

• Partex COL series copper tube terminal.
• Straight ring terminal configuration for bolted electrical connections.
• 400 mm² nominal conductor size.
• M20 stud compatibility.
• Copper tube barrel designed for crimping onto compatible copper conductors.
• Ring-shaped connection palm for secure attachment to compatible threaded studs.
• Conventional straight terminal arrangement for large electrical power cable connections.
• Designed for permanent crimped cable termination using appropriately matched tooling.
• Suitable for industrial power distribution, switchgear, electrical cabinets and machinery.
• Supplied in packs of 5 pieces.

Reliable Cable Termination for Industrial Electrical Systems

Copper tube ring terminals are commonly used in industrial electrical installations to provide secure connections between copper conductors and electrical equipment. By crimping the terminal barrel onto a correctly prepared conductor, installers can create a mechanically robust termination that supports effective electrical current transfer when the terminal, conductor and crimping equipment are correctly matched. The copper construction provides a conductive connection path, while the ring-shaped palm enables secure attachment to compatible bolted terminals.

The Partex COL400-20 combines a copper tube barrel with an M20 ring connection, making it suitable for applications requiring secure bolted cable termination. The ring-shaped palm surrounds the fixing stud, helping retain the terminal at the connection point and providing a practical connection arrangement for electrical distribution assemblies, switchgear compartments, busbars and industrial equipment. Its 400 mm² conductor compatibility makes it particularly relevant to installations involving large power cables where electrical performance, connection integrity and mechanical cable support are important considerations.

For dependable performance, the conductor should be correctly stripped and fully inserted into the terminal barrel before crimping with a suitable tool and die. The completed connection should be fastened to a compatible M20 stud using the equipment manufacturer's recommended fixing arrangement and tightening torque. Installers must verify that the equipment connection palm, fixing arrangement and available clearances are suitable for a terminal accommodating a 400 mm² conductor. Electrical loading, conductor construction, cable bending radius and environmental conditions should also be assessed before commissioning, with appropriate cable support provided to prevent unnecessary mechanical stress on the termination.

Typical Applications

• Industrial low-voltage power distribution systems.
• Main switchgear and electrical distribution assemblies.
• Electrical busbar and bolted terminal connections.
• Main electrical distribution panels and power cabinets.
• Industrial motor control centres and associated power connections.
• Large industrial machinery and equipment power wiring.
• Heavy-duty copper power cable termination in electrical installations.
• Electrical infrastructure installation and maintenance.
• OEM electrical equipment manufacturing and panel building.
• Electrical installations requiring 400 mm² copper cables and M20 stud connections.
• Industrial distribution assemblies and large power cable termination systems.