COL4B Partex copper tube butt connector, 4mm², pack 100

Why Choose the Partex COL4B Copper Tube Butt Connector?

The Partex COL4B is a copper tube butt connector designed to join two compatible 4 mm² electrical conductors in a secure, inline connection. Suitable for electrical installations, control panels, industrial machinery and cable maintenance applications, this connector provides a practical method of joining conductors without using a separate terminal block or stud connection.

As part of the Partex COL copper tube terminal range, the COL4B uses a tubular copper construction designed for crimp termination. The connector allows conductors to be inserted from opposite ends and secured using an appropriately selected crimping tool and die. Its copper construction provides excellent electrical conductivity, while the crimped connection is intended to establish dependable mechanical retention and electrical continuity when correctly installed.

Designed for 4 mm² nominal conductor cross-sections, the Partex COL4B is suitable for compatible cable joining applications where an inline conductor connection is required. Supplied in a convenient pack of 100 connectors, it is particularly useful for electricians, panel builders, electrical contractors and industrial maintenance engineers carrying out repeated cable joining and electrical assembly work.

Key Advantages

• Copper tube butt connector designed for inline electrical conductor joining.
• 4 mm² nominal conductor size for compatible electrical cables.
• Copper construction provides excellent electrical conductivity.
• Inline connector design allows two conductors to be joined without a stud or screw terminal.
• Crimp termination supports secure mechanical and electrical connections when correctly installed.
• Suitable for cable joining, electrical assembly and maintenance applications.
• Compact tubular construction supports neat cable routing and organised wiring.
• Suitable for industrial control panels, machinery and electrical equipment.
• Can be incorporated into appropriately insulated cable joints and wiring assemblies.
• Pack of 100 connectors provides a convenient quantity for installation, production and maintenance projects.

Key Features

• Partex COL copper tube terminal range.
• 4 mm² nominal conductor cross-section.
• Butt connector configuration for joining two electrical conductors.
• Conductive copper tube construction.
• Inline connection design with conductor entry from opposite ends.
• Designed for permanent crimp-type electrical termination.
• Suitable for use with compatible conductors and crimping equipment.
• No ring terminal, stud or threaded mounting connection required.
• Practical for electrical cable assembly and maintenance work.
• Suitable for control cabinet and industrial equipment wiring.
• Supplied in a pack containing 100 connectors.

Reliable Inline Cable Connections for Electrical Installations

Copper tube butt connectors are used in electrical installations where two conductors need to be joined to form a continuous electrical connection. The Partex COL4B provides a practical method of joining compatible 4 mm² conductors using a crimped copper tube connection. Unlike ring terminals, which connect a conductor to a stud or screw, a butt connector is designed to connect one cable directly to another, making it useful for cable assembly, wiring modifications and maintenance applications.

The Partex COL copper tube connector range supports electrical panel manufacturing, industrial machinery wiring and maintenance projects requiring consistent conductor joints. For reliable installation, both conductors should be correctly stripped and inserted into the connector before crimping with a suitable tool and die. The completed connection must be insulated and protected as required by the installation, with appropriate consideration given to conductor compatibility, current-carrying requirements, mechanical strain relief and applicable electrical standards.

Typical Applications

• Inline joining of compatible 4 mm² electrical conductors.
• Industrial electrical control panel wiring.
• Electrical cabinet and enclosure assembly.
• Industrial machinery and equipment wiring.
• OEM cable harness and electrical assembly production.
• Motor control and automation equipment wiring.
• Electrical cable maintenance and replacement work.
• Industrial equipment refurbishment and wiring modifications.
• Building services electrical installations where suitable cable joints are permitted.
• General-purpose electrical conductor splicing using compatible crimping equipment.