Product Description

Product Overview

These Heat Shrink Butt Connectors are professional-grade electrical terminals designed for reliable, long-lasting wire connections.
Featuring a 3:1 heat shrink ratio and premium materials, they offer exceptional waterproof performance and conductivity, making them ideal for both professional repairs and DIY projects in harsh or damp environments.

Key Specifications

  • Heat Shrink Ratio: 3:1 (minimum shrinkage temperature: 175°F / 79°C)
  • Working Temperature Range: -60°F to 260°F (-51°C to 127°C)
  • Material: Tin-plated red copper core (ensures efficient current transmission) + polyolefin heat shrink tube (wear-resistant, insulating)
  • Color & Size Compatibility:
    • Red: AWG 22-18 (fits wire/cable 0.5-1.5mm²)
    • Blue: AWG 16-14 (fits wire/cable 1.5-2.5mm²)
    • Yellow: AWG 12-10 (fits wire/cable 4.0-6.0mm², meets medium current requirements)

Premium Features

  • Safety Certified: Passes CE, RoHS, ISO9001, and SGS certifications for safe and reliable use in all electrical projects.
  • Superior Waterproof Seal: When heated, the polyolefin tube shrinks tightly, activating the internal adhesive to seal against water, steam, salt, and contaminants.
  • Secure & Efficient Connection: Thick tin-plated copper core ensures firm crimping, tight contact, minimal voltage drop, and no wire slippage.
  • Visual Inspection: Translucent heat shrink tube allows easy checking of the connection quality.
  • Durable Design: Seamless tube structure and high tensile strength resist mechanical damage, corrosion, and leakage.

Wide Applications

Suitable for automotive (wire harness repair, circuit connections), marine (waterproof electrical systems), industrial (automation equipment, outdoor lighting), scientific projects, and household electrical wiring. Perfect for harsh or damp environments.

Easy Installation

  1. Prepare the wire: Strip the insulation and clean the conductor.
  2. Crimp: Insert the wire into the connector and fasten it with a crimping tool.
  3. Heat shrink: Use a heat gun to heat the tube until fully shrunk, activating the waterproof adhesive

Note: 
The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.

Our company was founded in 1995 and has nearly 30 years of industry experience.

Manage various industrial products and mechanical modules.

The company has a technical and operational team of nearly 100 people, capable of providing the best service to customers

图片.png

We will arrange shipment within 3 days.
This depends on the delivery schedule of our warehouse.  

It takes 2-5 days to arrive usually.
If you urgently need it, plz contact us first, we will try our best to help you expedite the delivery.  

Thank you for your understanding!

We offer a one-year warranty for all products.
Please trust us, we will take every order seriously!  
We hope you can have a perfect shopping experience and impeccable products here!

About Us

Our company was founded in 1995 and has nearly 30 years of industry experience.

Manage various industrial products and mechanical modules.

The company has a technical and operational team of nearly 100 people, capable of providing the best service to customers

图片.png

Shipping

We will arrange shipment within 3 days.
This depends on the delivery schedule of our warehouse.  

It takes 2-5 days to arrive usually.
If you urgently need it, plz contact us first, we will try our best to help you expedite the delivery.  

Thank you for your understanding!

Returns

We offer a one-year warranty for all products.
Please trust us, we will take every order seriously!  
We hope you can have a perfect shopping experience and impeccable products here!

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