COL300B Partex copper tube butt connector, 300mm², pack 10

Why Choose the Partex COL300B 300mm² Copper Tube Butt Connector?

The Partex COL300B is a heavy-duty 300 mm² copper tube butt connector designed to join two compatible large copper electrical conductors in a secure, permanent in-line connection. Featuring a robust tubular construction with cable entry points at both ends, this uninsulated crimp connector is suitable for industrial power distribution, heavy-duty electrical installations, large power cable extensions and professional cable repair applications.

As part of the Partex COL copper tube connector range, the COL300B provides a practical method of joining copper cables without the need for a bolted terminal or stud connection. Its conductive copper construction supports efficient electrical current transfer, while the compression crimp design enables reliable mechanical retention and electrical contact when installed using the correct crimping equipment and compatible conductors.

Designed for 300 mm² copper cables, the COL300B is particularly suited to applications involving large conductors where maintaining a dependable electrical connection is essential. Its straight, in-line configuration helps preserve the natural direction of the cable run and supports organised cable management. Supplied in a convenient pack of 10 butt connectors, it is suitable for electrical contractors, industrial maintenance engineers, cable installation specialists and power distribution professionals.

Key Advantages

• Heavy-duty 300 mm² copper tube butt connector for joining large electrical conductors.
• In-line cable connection enables two compatible copper conductors to be joined end to end.
• Conductive copper construction supports efficient electrical current transfer.
• Robust tubular body provides dependable mechanical retention when correctly crimped.
• Double-ended crimp design allows permanent compression termination of both conductors.
• Straight connector configuration supports practical cable routing and installation.
• Suitable for heavy-duty copper power cable extensions and repairs.
• Eliminates the need for a bolted stud connection when creating a suitable in-line cable joint.
• Uninsulated construction allows installers to select appropriate joint insulation and protection.
• Supplied in a pack of 10 for professional electrical installation and maintenance work.

Key Features

• Partex COL300B copper tube butt connector.
• 300 mm² nominal conductor cross-sectional area.
• Heavy-duty copper tube construction.
• Double-ended barrel for joining two compatible copper conductors.
• Straight in-line connector configuration.
• Designed for permanent compression crimp termination.
• Suitable for correctly prepared copper power cables.
• Robust tubular body for professional electrical cable joining.
• No mounting stud or ring terminal required.
• Uninsulated construction for application-specific joint insulation.
• Suitable for industrial power distribution and heavy-duty electrical installations.
• Designed for installation using suitable heavy-duty crimping tools and dies.
• Pack quantity: 10 connectors.

Reliable Heavy-Duty Copper Cable Joints for Industrial Power Distribution

Copper tube butt connectors such as the Partex COL300B provide a practical solution for joining large copper electrical conductors in a continuous cable run. Unlike ring terminals, which connect a cable to a bolted fixing point, a butt connector joins two cable ends directly. This makes it suitable for cable extensions, conductor repairs and other applications where a permanent in-line electrical connection is required.

The COL300B features a tubular construction designed to accept correctly prepared 300 mm² copper conductors from opposite ends. Each conductor is secured using an appropriately sized compression crimping tool and die. When installed correctly, the resulting connection provides dependable electrical contact and mechanical retention, helping maintain the integrity of the cable joint.

The straight in-line design is particularly useful for large power cables where maintaining an organised cable route is important. Because 300 mm² conductors are substantial in size, installers should ensure that adequate space is available for cable preparation, crimping tool access, insulation and the required cable bending radius. The connector and both conductors must be compatible with the intended crimping system.

For safe and reliable installation, both cable ends should be correctly stripped, inserted and crimped in accordance with the connector and tooling manufacturer's instructions. As the COL300B is uninsulated, the completed joint requires suitable insulation and protection, such as appropriately rated heat-shrink jointing materials or an approved cable jointing system. The finished connection must be suitable for the circuit voltage, current, conductor construction, mechanical conditions and installation environment.

Typical Applications

• Industrial power distribution cable connections.
• Large copper power cable extensions.
• Heavy-duty electrical cable repairs and maintenance.
• Industrial switchgear and associated power cable installations.
• Electrical distribution infrastructure and cable jointing.
• Large-conductor connections in industrial machinery installations.
• Commercial and industrial electrical refurbishment projects.
• OEM electrical equipment and power cable assembly work.
• Professional electrical installations requiring permanent in-line conductor joints.
• Applications requiring secure 300 mm² copper-to-copper cable connections using a compatible compression crimping system.