Why Choose the Partex PXL50-8 Copper Tube Ring Terminal?
The Partex PXL50-8 is a robust copper tube ring terminal designed for securely terminating 50 mm² copper conductors onto electrical connections using an M8 stud or bolt. Supplied in a convenient pack of 30 terminals, it provides a practical solution for electrical contractors, industrial panel builders, maintenance engineers and equipment manufacturers requiring reliable crimped cable connections.
Part of the Partex PXL copper tube terminal range, the PXL50-8 features a tubular conductor barrel and a flat ring-type connection palm. The conductor is inserted into the barrel and secured using an appropriately matched crimping tool and die, creating a permanent mechanical and electrical connection when correctly installed. The ring palm is then fastened to a compatible M8 threaded connection point.
The Partex PXL50-8 50 mm² M8 copper cable lug is particularly useful in industrial power distribution equipment, electrical control panels, machinery and other applications requiring secure bolted cable terminations. Its copper construction provides good electrical conductivity, while the ring terminal design helps maintain a secure connection until the fastening hardware is deliberately removed.
Key Advantages
- Designed for 50 mm² copper conductors, providing a correctly sized termination for compatible cables.
- M8 stud fixing for secure bolted electrical connections.
- Copper tube construction provides good electrical conductivity.
- Crimp termination delivers secure mechanical conductor retention when correctly installed.
- Ring-type connection remains captured by the stud until the fixing hardware is removed.
- Pack of 30 terminals is convenient for electrical installation projects, panel production and maintenance stockholding.
- Suitable for industrial electrical equipment, power distribution and control panel applications.
- Uninsulated construction allows visual inspection and the application of suitable supplementary insulation.
- Practical for new installations, cable assembly work and replacement electrical connections.
- Combines large-conductor crimping and secure bolted electrical connection in one terminal.
Key Features
- Partex PXL series copper tube ring terminal.
- Manufacturer part number: PXL50-8.
- Conductor cross-sectional area: 50 mm².
- Compatible stud size: M8.
- Nominal stud diameter: 8 mm.
- Terminal material: Copper.
- Connection style: Ring-type bolted terminal.
- Conductor termination: Compression crimp.
- Barrel construction: Tubular.
- Insulation: Uninsulated terminal.
- Pack quantity: 30 pieces.
- Designed for compatible copper power and equipment wiring.
- Suitable for use with an appropriately matched crimping tool and die.
- Provides a permanent crimped conductor connection with a removable bolted fixing.
Technical Specifications
- Manufacturer: Partex
- Product series: PXL
- Model / SKU: PXL50-8
- Product type: Copper tube ring terminal / cable lug
- Conductor size: 50 mm²
- Compatible stud size: M8
- Nominal stud diameter: 8 mm
- Terminal material: Copper
- Terminal design: Tubular barrel with ring palm
- Termination method: Crimping
- Electrical connection: Bolted stud connection
- Insulation type: Uninsulated
- Pack size: 30 terminals
- Compatible conductor material: Copper, subject to cable and crimping compatibility
- Primary application: Termination of compatible 50 mm² copper conductors onto M8 electrical connection points
Reliable 50 mm² Copper Cable Terminations for Electrical Installations
Copper tube ring terminals are widely used in electrical installations where a secure and dependable connection is required between a cable conductor and an equipment terminal. The Partex PXL50-8 is designed to terminate 50 mm² copper cable onto an M8 stud connection, providing a practical method of connecting larger conductors to electrical distribution equipment, machinery and control systems.
The terminal's tubular copper barrel receives the stripped conductor, which is then compressed using a suitable crimping tool and correctly matched die. When properly crimped, the terminal forms a secure mechanical connection and establishes electrical contact between the conductor strands and the copper barrel.
The ring-type connection palm provides a bolted fixing point. Unlike an open-ended fork terminal, a ring terminal cannot be removed from the stud without first removing the fastening hardware. This makes ring terminals a practical choice for installations where a retained bolted connection is preferred.
Correct installation is essential for dependable performance. The conductor must be stripped to the appropriate length, fully inserted into the barrel and crimped using tooling suitable for the terminal and conductor. The completed ring connection should then be secured using the equipment manufacturer's specified fastening arrangement and tightening torque.
Where additional electrical insulation or mechanical protection is required, suitable heat-shrink tubing, insulating sleeving or enclosure protection should be provided. The terminal's suitability for a particular electrical load and installation environment must be determined from the applicable technical data and electrical installation requirements.
Choosing the Correct 50 mm² M8 Copper Ring Terminal
Selecting the correct cable lug requires consideration of both the conductor cross-sectional area and the stud connection size. The Partex PXL50-8 is intended for 50 mm² copper conductors and M8 fixing studs.
Although different ring terminals may accommodate the same conductor size, their fixing holes can vary. Choosing the correct fixing size helps ensure proper seating and secure attachment to the electrical equipment. The terminal palm must also be suitable for the contact area and fastening arrangement of the connection point.
The conductor material and construction must be compatible with the terminal. The PXL50-8 is a copper terminal intended for suitable copper conductors. Aluminium cables and mixed-metal connections require separately specified termination components and installation methods.
As an uninsulated copper ring terminal, the PXL50-8 may require supplementary insulation depending on the application. Installers should verify the required conductor preparation, crimping method and electrical connection arrangement before fitting.
Installation Guidance for the Partex PXL50-8
For a reliable connection, the 50 mm² copper conductor should be prepared using a suitable cable stripping tool. Care should be taken to avoid damaging or removing conductor strands during preparation.
The conductor should be inserted fully into the tubular barrel of the PXL50-8. A compatible crimping tool and die should then be used to compress the barrel in accordance with the terminal manufacturer's recommendations. For larger conductors, it is particularly important that the crimping equipment provides the correct compression profile and force.
After crimping, the termination should be inspected for correct conductor insertion, suitable compression and visible damage. The ring palm can then be positioned over the M8 connection stud and secured using the appropriate fastening hardware.
The bolted connection should be tightened to the torque specified by the equipment manufacturer. Correct cable routing and support should also be provided to prevent excessive mechanical loading on the termination, particularly where larger power cables are used.
Typical Applications
- Industrial electrical control panels and cabinets.
- Low-voltage power distribution equipment.
- Busbar and M8 stud-mounted electrical connections.
- Motor control centres and industrial machinery.
- Electrical terminal blocks with M8 stud connections.
- Power supply and equipment earthing connections where appropriately specified.
- Industrial automation and OEM panel assembly.
- Commercial and industrial electrical installations.
- Electrical equipment refurbishment and cable replacement.
- Workshop cable assembly and electrical maintenance projects.
