A wire ferrule is a small, tin-coated copper tube crimped onto the stripped end of a stranded electrical wire to hold the strands together.

Key Characteristics & Anatomy

• Metal Barrel: A hollow copper tube that accepts the exposed wire strands.
• Insulated Collar: A plastic flare at the base that guides fine wire strands and covers any frayed insulation.
• Sizes: Ranging from tiny 16 AWG wires up to heavy power cables 0 AWG.