Yellow ferrules are insulated wire end sleeves designed to provide secure and professional terminations for stranded wires. Made from tin-plated copper with a yellow insulated collar, they prevent strand fraying, improve conductivity, and ensure reliable connections in terminals. Ideal for control panels, PLC wiring, and electrical distribution boards.

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Description

Yellow ferrules are insulated end sleeves used to terminate stranded wires, ensuring a secure, reliable, and neat connection in terminals. They prevent wire strand fraying, improve conductivity, and increase safety in electrical installations.

Features

  • Made from high-conductivity copper with tin plating.

  • Yellow insulated collar for easy wire size identification.

  • Ensures firm crimping and long-lasting connections.

  • Resistant to vibration and loosening.

  • Corrosion-resistant and durable.

Specifications

  • Material (Tube): Electrolytic copper, tin-plated

  • Insulation: Polypropylene / Nylon (Yellow)

  • Wire Range (Typical): 4.0 mm² – 6.0 mm² (depending on standard)

  • Temperature Resistance: −40°C to +105°C

  • Standards: DIN 46228 / IEC compliant

Advantages

✅ Provides professional, tidy wiring finish
✅ Prevents conductor strand breakage
✅ Increases current carrying reliability
✅ Color coding allows quick identification
✅ Easy to crimp with standard ferrule crimping tools

Disadvantages

Requires special crimping tool for proper installation
 Not reusable once crimped
 Must match correct wire size (wrong fit reduces reliability)

Applications

  • Control panels and switchgear

  • Industrial automation systems

  • PLC wiring and machine controls

  • Electrical distribution boards

  • Household and commercial electrical wiring

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