Why Choose the Partex COL300-20 Copper Tube Ring Terminal?
The Partex COL300-20 is a heavy-duty copper tube ring terminal designed for secure termination of large electrical conductors in industrial power distribution, switchgear and electrical infrastructure installations. Suitable for 300 mm² copper conductors and featuring an M20 stud connection, this terminal provides a practical solution for connecting large electrical cables to compatible equipment terminals, busbars and bolted electrical connections.
Manufactured from copper, the COL300-20 offers excellent electrical conductivity and is designed to provide a dependable electrical and mechanical connection when installed using suitable crimping equipment. Its tubular barrel accommodates the prepared conductor, while the ring-shaped connection palm allows the terminal to be securely fastened to a compatible M20 stud or bolted connection point.
Designed for 300 mm² electrical cables and M20 mounting studs, the Partex COL300-20 is supplied in a convenient pack of 10 terminals. It is suitable for electrical contractors, switchgear manufacturers, industrial maintenance engineers and electrical installation professionals working with large copper power conductors.
Key Advantages
- Heavy-duty copper tube ring terminal for secure electrical cable termination.
- 300 mm² conductor compatibility for large industrial copper power cables.
- M20 stud connection for compatible bolted electrical terminals.
- Copper construction provides excellent electrical conductivity.
- Ring-shaped connection supports secure fastening when correctly installed.
- Designed for crimp termination using suitable professional cable crimping equipment.
- Tubular barrel construction supports conductor insertion and effective crimping.
- Provides a practical termination solution for large copper conductors.
- Suitable for industrial power distribution equipment, switchgear and electrical machinery.
- Supports permanent cable termination when correctly crimped and installed.
- Supplied in a pack of 10 terminals for electrical installation and maintenance work.
Key Features
- Partex COL copper tube terminal range.
- 300 mm² nominal conductor cross-section.
- M20 stud size.
- Copper terminal construction.
- Ring-type connection for stud and bolted fastening.
- Tubular conductor barrel for crimp termination.
- Designed for use with compatible copper conductors.
- Suitable for industrial electrical power wiring and cable termination.
- Designed to provide a permanent crimp connection when correctly installed.
- Suitable for equipment connections requiring an M20 mounting point.
- Suitable for professional switchgear assembly and electrical infrastructure projects.
- 10 terminals per pack.
Secure Electrical Connections for Industrial Power Distribution
Copper tube ring terminals are commonly used to terminate electrical conductors where a secure bolted connection is required. The Partex COL300-20 is designed to connect a 300 mm² copper conductor to an electrical terminal fitted with an M20 stud or compatible fastening.
The tubular copper construction provides a suitable barrel for crimping the conductor, while the ring-shaped connection palm allows the completed termination to be secured beneath a compatible fastening. This arrangement is useful in industrial electrical distribution equipment, switchgear assemblies, power panels and machinery where dependable cable connections are essential.
For larger conductor sizes such as 300 mm², correct cable preparation and termination are especially important. The terminal must be matched to the conductor construction and an appropriate crimping system to achieve effective electrical contact and mechanical retention. Suitable cable support also helps minimise stress at the connection point.
During installation, the conductor is stripped to the appropriate length without damaging its strands. The prepared conductor is inserted into the tubular barrel and secured using a compatible crimping tool and die, following the recommended crimping procedure. A correctly formed crimp provides mechanical retention and effective electrical contact between the conductor and terminal.
Once crimped, the ring palm is positioned over the compatible M20 stud and secured using the equipment manufacturer's specified fastening arrangement and tightening procedure. Appropriate contact surface preparation, electrical clearance and cable support should be considered during installation.
The 300 mm² conductor and M20 stud combination requires particular attention to the electrical and mechanical suitability of the equipment connection. The conductor size alone does not determine the current-carrying capacity of the complete connection; the terminal, fastening arrangement, contact surface, equipment rating and installation conditions must all be suitable for the intended application.
The COL300-20 provides a practical cable termination solution for electrical contractors, switchgear manufacturers and industrial maintenance personnel. Correct conductor preparation, compatible crimping equipment, appropriate fastening torque, suitable cable support and adequate installation clearance are essential for achieving a dependable electrical connection.
Typical Applications
- Industrial electrical distribution boards and switchgear assemblies.
- Main electrical distribution equipment and power panels.
- Large industrial electrical cabinets and power systems.
- Electrical equipment terminal connections.
- Compatible busbar and bolted terminal connections.
- Industrial machinery and electrical power connections.
- Electrical infrastructure installation and maintenance.
- Large copper cable termination projects.
- Switchgear manufacturing and electrical assembly production.
- Industrial equipment maintenance and cable replacement.
- Commercial and industrial electrical installations.
- Electrical systems requiring 300 mm² conductors with M20 stud connections.
