Heat Shrink Butt Connector Kit

620 PCS Kit620 PCS Kit

$59.99

180 PCS Kit180 PCS Kit

$32.99

$59.99 $54.99
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Excellent Wire Contact -Copper barrel does many incredible things such as increasing current flow, preventing wire failures, reducing equipment downtime, and ensuring less voltage drop. Your wire will never slip out of these connectors.

Waterproof - The tubing has a unique dual-walled design including hot melt adhesive inside and polyolefin tubing outside. Wire corrosion is prevented and the seal is waterproof with the dual-wall design. Polyolefin tubing reduces in size, and adhesive flows inside when heat is applied.

Easily Identified Pieces - The wire gauge is imprinted on the tubing and the connectors are color-coded. This makes identifying the right size of connectors very easy to do.


Wirefy’s Heat Shrink Butt Connectors are easy to locate within an organized kit and are designed to improve quality of your wire connections. Both durable and waterproof, these connectors prevent wires from corroding or slipping out.

What's In The Kit

The 620 Wirefy Kit offers a versatile heat shrink connector selection that will fullfill a wide range of wiring needs and projects. It includes 3 sizes of connectors:

Red 22-16 AWG (280 pieces)
Blue 16-14 AWG (280 pieces)
Yellow 12-10 AWG (60 pieces)

Heat Shrink Butt Connectors

The 180 Wirefy Kit offers a versatile heat shrink connector selection that will fullfill a wide range of wiring needs and projects. It includes 3 sizes of connectors:

Red 22-16 AWG (90 pieces)
Blue 16-14 AWG (60 pieces)
Yellow 12-10 AWG (30 pieces)

Technical Specs

- Shrinkage ratio 3:1
- Dual-walled design tubing: polyolefin tubing on the outside and hot melt adhesive in inside
- Connector barrel crafted from a single piece of copper
- Wire gauge imprint on connectors
- Minimum shrink temperature: 80°C
- No wire damage due to lower shrink temperature
- Full recovery temperature: 130°C
- Operating temperature: from -55°C to 125°C
- Reusable case included

- Shrinkage ratio 3:1
- Dual-walled design tubing: polyolefin tubing on the outside and hot melt adhesive in inside
- Connector barrel crafted from a single piece of copper
- Wire gauge imprint on connectors
- Minimum shrink temperature: 80°C
- No wire damage due to lower shrink temperature
- Full recovery temperature: 130°C
- Operating temperature: from -55°C to 125°C
- Reusable case included

How to Use

How to Use Heat Shrink Butt Connectors

Step 1: Select a heat shrink connector to suit wire size

Step 2: Strip insulation to 8mm and insert into splice barrel

Step 3: Crimp using the tool for insulated connectors

Step 4: Apply heat while rotating the connector. For best results use heat gun or a mini blow torch.

Step 5: Inspect your waterprood quality connector. Now you have a secure and insulated connector

How to Use Heat Shrink Butt Connectors

Step 1: Select a heat shrink connector to suit wire size

Step 2: Strip insulation to 8mm and insert into splice barrel

Step 3: Crimp using the tool for insulated connectors

Step 4: Apply heat while rotating the connector. For best results use heat gun or a mini blow torch.

Step 5: Inspect your waterprood quality connector. Now you have a secure and insulated connector

Quality Commitment

We have rigid quality standards in our production process, and we perform thorough quality inspection of all the completed units. We are putting a lot of resources and effort to ensure your each and every connection comes out perfect.

We stand behind the quality of our electrical connectors. Our client experience team will work on every inquiry to provide comprehensive product support and ensure your complete satisfaction with Wirefy connectors. If you have any questions, do not hesitate to reach out to us via the CONTACT US page.

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