WATTSTUNDE® Wire end ferrule 4 mm² black 25 pcs.

WATTSTUNDE® 4 mm² Black Wire End Sleeves – 25 Pieces

The WATTSTUNDE® 4 mm² wire end sleeve offers you a stable, durable, and easy-to-process solution for heavy-duty fine-stranded conductors. With its robust copper construction, high-quality tin coating, and increased material thickness, it is perfect for demanding electrical installations – whether in solar systems, caravans, workshops, or your DIY projects.

Clean & resilient conductor terminations

Especially with larger cross-section conductors, a precise and secure termination is crucial. The wire end sleeve prevents the individual strands from splaying, ensures easy crimping, and guarantees you a permanently reliable electrical connection. The tinned surface additionally protects against corrosion – ideal for environments where moisture or heavy loads occur.

Technical details at a glance

• Conductor cross-section: 4.0 mm²
• Length (L): 19.4 mm
• Width (W): 7.4 mm
• d2 (inner diameter): 2.8 mm
• F (sleeve length): 12.0 mm
• d: 4.5 mm
• D: 3.2 mm
• Material thickness: 0.14 mm

Robust material & reliable coating

The wire end sleeve is made of high-quality copper, known for its excellent electrical conductivity. The tin coating protects against oxidation and makes it easier for you to insert the wire and perform the crimping process. The increased material thickness of 0.14 mm provides additional stability – a major advantage especially with heavier conductors.

Your benefits

• Very stable & standard-compliant conductor terminations
• Increased material thickness for even more robust crimping
• Corrosion-resistant thanks to high-quality tin coating
• Ideal for solar systems, caravan electrical systems & demanding installations
• Warranty period: 2 years

Perfect for high-performance electrical projects

Whether for off-grid wiring, solar systems, workshops, or household use – the WATTSTUNDE® 4 mm² wire end sleeve reliably helps you connect your cables cleanly, safely, and with long-lasting resilience.