Cimco 187021 Partially Insulated Wire End Ferrule 4 mm², Grey, 100 pcs

The Cimco 187021 wire end ferrule stands out with its funnel-shaped insulation collar, which guides stranded conductors smoothly into the tin-plated copper sleeve without catching or splaying. This design reduces rework during panel building and control cabinet wiring, especially when working with fine-stranded conductors up to 4 mm².

Highlights

• Partially insulated ferrule for 4 mm² conductors
• Funnel-shaped polypropylene collar for easy wire insertion
• Electrolytic copper sleeve, tin-plated for corrosion resistance
• Pack of 100 grey ferrules
• Complies with DIN 46228 Part 4

In daily use

These ferrules are a reliable choice for terminating flexible conductors in industrial control panels, building installations, and machinery wiring. The grey colour coding follows the standard cross-section identification, making it easy to pick the right size at a glance. The partial insulation leaves the crimping area exposed, allowing a secure gas-tight connection with standard crimping tools.

Full specifications

• Wire cross-section: 4 mm²
• Insulation type: partially insulated
• Colour: grey
• Quantity per pack: 100 pieces
• Sleeve material: electrolytic copper, tin-plated
• Insulation material: polypropylene (PP)
• Total length (L2): 18 mm
• Sleeve length (L1): 12 mm
• Insulation collar diameter (D2): 6.0 mm
• Sleeve inner diameter (D1): 3.0 mm
• Sleeve outer diameter: 3.2 mm
• Temperature range: -40°C to +105°C
• Halogen-free: yes

Final note

For consistent, reliable crimps on 4 mm² stranded wire, the Cimco 187021 ferrule delivers the precision and durability expected in professional electrical work.