An electrical ferrule, also known as a wire ferrule or crimp ferrule, is a small, deformable metal tube crimped onto the end of a stripped, stranded wire to secure the strands within a screw terminal, preventing fraying and ensuring a reliable, low-resistance connection.
Purpose:
Secures Stranded Wires: Ferrules prevent the fine strands of a stranded wire from fraying or spreading out when inserted into a screw terminal.
Improved Connection: They ensure a solid, low-resistance connection by compressing the strands tightly within the terminal.
Reduces Corrosion: Ferrules can help minimize corrosion-induced resistance at the termination, preventing heating, voltage drop, and lost connections.
Prevents Vibration Damage: They can prevent spring terminals from slowly cutting through the wire strands in vibration environments, preventing disconnection and potential loose live wire situations.
Construction:
Material: Typically made of a soft, deformable metal like tin-plated copper.
Shape: A short tube or ring, with a flare on one end to collect and bundle the wire strands.
Insulation: Some ferrules are insulated with a colored polypropylene jacket for added protection and color-coding.
Types:
Single: For use with one wire.
Uninsulated: Just the tin-plated barrel.
Insulated: With a colored polypropylene jacket.
Twin: For simultaneously combining two wires.
Features
- Type: Ferrule Non-Insulated
- Dimensions:
- ∀ – 3.1mm
- Σ – 15.0mm
- Cable mm²: 4.0mm²
- Color: Silver
- Material: Brass Plated
- Brand: Sparkie
- Warranty: Yes
- Pack Size: 4 Pcs
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