COL25-5 Partex copper tube ring terminal, 25mm², M5 stud, pack 100

Why Choose the Partex COL25-5 Copper Tube Ring Terminal?

The Partex COL25-5 is a professional 25 mm² copper tube ring terminal designed for terminating electrical conductors onto equipment fitted with an M5 stud or bolt connection. Featuring a tubular copper barrel and ring-shaped fixing end, this terminal provides a practical solution for creating secure, mechanically fastened electrical connections in industrial control panels, electrical distribution assemblies, machinery and other professional electrical installations.

Designed for use with appropriately sized 25 mm² conductors, the Partex COL25-5 combines a crimp-style cable connection with an M5 ring fixing. The closed ring design allows the terminal to be retained beneath suitable fastening hardware, helping provide a mechanically secure connection when correctly crimped and installed. Its copper construction makes it suitable for electrical applications requiring a conductive cable termination component selected to match the conductor and equipment connection.

Supplied in a convenient pack of 100 terminals, the Partex COL25-5 is particularly useful for electrical contractors, control panel manufacturers, OEM machinery builders and industrial maintenance departments carrying out repeated cable termination work. The pack quantity supports efficient component stocking and consistent installation practices across electrical assembly, equipment manufacturing and maintenance projects.

Key Advantages

• 25 mm² conductor compatibility for appropriately sized electrical cable terminations.
• M5 ring connection designed for compatible stud and bolt fastening points.
• Copper tube construction provides a conductive termination component for electrical installations.
• Closed ring design supports secure mechanical fastening when correctly installed.
• Suitable for professional electrical panel wiring and equipment assembly.
• Useful for power distribution, industrial machinery and electrical control applications where the connection specifications are compatible.
• Supports consistent cable termination practices across multiple electrical assemblies.
• Practical for connections to suitable equipment terminal studs and bolted connection points.
• Designed for use with appropriate crimping equipment and compatible tooling.
• Suitable for electrical installation, maintenance, repair and refurbishment work.
• Convenient packaging supports repeated cable assembly and termination operations.
• Pack of 100 provides a practical quantity for panel builders, contractors and maintenance teams.

Key Features

• Partex COL series copper tube ring terminal.
• Manufacturer part number: COL25-5.
• Nominal conductor cross-section: 25 mm².
• Compatible stud size: M5.
• Terminal material: Copper.
• Tube-style conductor barrel for crimp termination.
• Ring-shaped fixing end for compatible stud or bolt connections.
• Designed for cable-end termination using suitable crimping methods.
• Suitable for compatible electrical equipment connection points.
• Practical for industrial control panels, distribution equipment and machinery wiring.
• Supplied as individual terminals for electrical installation and cable assembly work.
• 100 copper tube ring terminals per pack.

Copper Tube Ring Terminals for Secure Electrical Cable Connections

Copper tube ring terminals are commonly used in electrical installations where conductors must be connected to equipment through mechanically fastened electrical connections. The Partex COL25-5 combines a 25 mm² conductor termination with an M5 ring fixing, providing a connection component for electrical assemblies where both dimensions are compatible with the equipment design. Correctly selected and installed ring terminals help create consistent connections between electrical cables and suitable equipment connection points.

In industrial automation and power distribution applications, conductors may need to be connected to terminal studs, electrical equipment posts or other bolted connection points. The ring-shaped fixing end provides a closed aperture through which the fastening stud or bolt passes. Unlike an open-ended fork terminal, the ring connection cannot be lifted away from an intact fastening point without first removing the retaining hardware. This makes ring terminals useful where a securely retained cable connection is required.

Correct crimping is essential to the performance of a copper tube ring terminal. The conductor should be prepared to the appropriate stripping length and inserted into the terminal barrel before crimping with a suitable tool and die combination. The finished termination should be inspected for correct conductor insertion, crimp quality and mechanical security. Where required by the installation, suitable insulation or protective sleeving should also be fitted.

The completed ring connection should be positioned on a compatible M5 stud or bolt and secured using the equipment manufacturer's specified fastening hardware and tightening torque. Particular attention is required when terminating a 25 mm² conductor onto an M5 connection point. The conductor cross-section and stud size alone do not establish the permissible current rating, mechanical suitability or electrical performance of the complete connection. The equipment terminal rating, contact arrangement, electrical loading, conductor construction and installation conditions must all be verified before use.

The pack of 100 makes the Partex COL25-5 convenient for electrical panel manufacturers, industrial maintenance teams and cable assembly workshops that require a consistent supply of copper tube ring terminals for suitable applications.

Typical Applications

• Industrial electrical control panel wiring.
• Electrical distribution assemblies with compatible M5 connection points.
• Motor control equipment and associated electrical connections.
• Industrial machinery electrical installations.
• Electrical equipment fitted with suitable M5 terminal studs.
• Power supply and electrical conversion equipment connections.
• OEM machinery and electrical equipment manufacturing.
• Building services electrical control installations.
• Industrial automation and control system wiring.
• Electrical maintenance and equipment refurbishment projects.
• Workshop cable assembly and wiring harness manufacturing.
• General electrical cable termination onto compatible bolted connections.