ELS Elektrotechnika TKI2508 Insulated Wire End Ferrule 2.5 mm²

The ELS Elektrotechnika TKI2508 is a high-quality insulated wire end ferrule specifically engineered for 2.5 mm² conductors. This essential electrical component is designed to terminate stranded wires, creating a solid and uniform contact surface that prevents individual wire strands from fraying or breaking under pressure. By providing a secure and reliable connection, it ensures optimal electrical conductivity and long-term stability within terminal blocks, circuit breakers, and various industrial or residential electrical equipment.

Advantages

Using this insulated ferrule significantly improves the safety and longevity of electrical installations. The integrated insulation collar provides strain relief and prevents accidental short circuits by covering the transition point between the wire insulation and the metal contact. Its design facilitates easier insertion into terminal blocks, reducing the risk of loose connections that can lead to overheating or electrical failure. The robust construction ensures a consistent, gas-tight connection that withstands mechanical vibrations and thermal expansion over time.

Suitable for

• Terminating stranded copper wires in electrical control panels
• Connecting wires to screw-type or spring-loaded terminal blocks
• Automotive and marine electrical wiring projects
• Residential and commercial electrical distribution systems
• Maintenance and repair of industrial machinery

When it may not be suitable

This ferrule is specifically designed for 2.5 mm² conductors and should not be used with wires of different cross-sections, as this will result in an insecure connection. It is not intended for use with solid core wires, which do not require ferrules for termination.

Key specifications

• Conductor cross-section: 2.5 mm²
• Insulation material: Polypropylene
• Contact material: Tin-plated copper
• Design: Insulated sleeve

How to use

To use the ferrule, first strip the insulation from the end of the wire to the appropriate length corresponding to the metal sleeve of the ferrule. Insert the exposed stranded wire into the metal tube of the ferrule until the strands are fully contained. Use a professional crimping tool designed for wire end ferrules to compress the metal sleeve onto the wire, ensuring a firm and permanent bond. Once crimped, the wire is ready to be inserted into the terminal block and secured.

What to consider before purchase

• Ensure your wire gauge matches the 2.5 mm² specification
• Verify the compatibility of your crimping tool with this ferrule size
• Check the maximum current rating of your electrical system

Usage recommendations

Always use a calibrated crimping tool to ensure the integrity of the connection. Avoid reusing ferrules once they have been crimped, as the metal structure is permanently deformed during the initial installation.