Professional-Grade Yellow Butt Splice Connectors for Reliable Inline Wire Joining

Engineered for Secure, Low-Resistance Connections in Automotive, Marine, and Industrial Applications

The Hellermann Tyton Yellow Butt Splice In-line Crimp Connectors provide a robust solution for joining 4.0–6.0 mm² (approx. 12–10 AWG) conductors. Designed for professionals who demand consistent performance, these connectors feature a seamless copper barrel and colour-coded PVC insulation for quick identification and durable insulation. With a maximum current rating of 48 A and voltage rating up to 600 V, they are well suited to 12 V, 24 V, and 48 V DC systems, as well as mains-voltage applications.

Unlike generic connectors that may suffer from poor crimp integrity or insulation breakdown, these Hellermann Tyton butt splices are manufactured to exacting standards. The copper barrel ensures excellent conductivity, while the PVC insulation resists abrasion, chemicals, and moisture, reducing the risk of corrosion and electrical failure in harsh environments.

*Note typical de-rating factors apply; ensure correct crimping and installation practices for maximum reliability.

Key Features

• Colour-coded yellow insulation for easy size identification and polarity consistency
• Seamless copper barrel for uniform crimping and minimal voltage drop
• Rated for 48 A continuous current, suitable for high-power circuits
• Wide operating temperature range up to +75 °C
• Supplied in a pack of 50, ideal for workshop stock or large projects

Why Choose Hellermann Tyton Butt Splices?

In critical electrical systems, the quality of every connection matters. These butt splice connectors are engineered to maintain a gas-tight crimp, preventing oxidation and ensuring long-term stability. The flared barrel entry guides stranded wires smoothly, reducing installation time and the risk of stray strands. Whether you're wiring a trailer, upgrading a marine electrical panel, or building a custom harness, these connectors deliver the reliability needed for safety and performance.

Compared to uninsulated or low-grade alternatives, the PVC sleeve provides superior electrical insulation and mechanical strain relief, protecting the joint from vibration and flexing. This is especially important in mobile and engine-compartment applications where movement and temperature cycling can compromise lesser connectors.

Applications

• Automotive wiring repairs and modifications
• Marine electrical systems, including bilge pumps and navigation lights
• Caravan and RV 12 V/24 V circuits
• Solar panel installations and battery interconnects
• Industrial control panels and machinery

Installation Tips for Optimal Results

Use a quality ratchet crimping tool with the correct die profile for insulated terminals. Strip the wire to the appropriate length, insert fully into the barrel, and crimp in the centre of the colour band. After crimping, visually inspect for a secure, uniform compression. For marine or outdoor use, consider applying adhesive-lined heat shrink over the connection for additional environmental sealing.

Upgrade Your Electrical Connections Today

Stock your workshop with Hellermann Tyton Yellow Butt Splice Connectors and experience the difference that precision manufacturing makes. Whether you're a professional installer or a dedicated DIY enthusiast, these connectors provide the performance and peace of mind you need for every inline splice.