Solder Seal Wire Connectors 3:1 Heat Shrink Insulated Electrical Wires

`solder seal wire connector, waterproof butt splice, heat shrink solder connector, 3:1 heat shrink terminal, electrical wire splice, solder ring connector`

`insulated wire terminal, automotive wire connector, marine wire splice, heat activated solder connector`

Color: White/Red/Blue/Yellow

Does it include a Battery?: No

Does it include wireless functionality?: No

EU LVD Voltage: Low voltage: Below 50Vac or 75Vdc

High-concerned chemical: none

Item type: Wire Connector

Model Number: 3:1,Insulated Solder Sleeve

Origin: Mainland China

Quantity: 10/20/30/50100pcs

Size: 0.25-10 sq mm

Type: Splice

feature: Soldering connectors

feature1: Terminals Connector

feature2: Waterproof connectors

feature3: Waterproof Terminals

SPECIFICATION

Attribute	Value
Product Name	Solder Seal Heat Shrink Butt Wire Connectors
Shrink Ratio	3:1
Color	Orange, Purple, Blue, Green, Red, Yellow, White
Pack Quantity	10Pcs, 20Pcs, 30Pcs, 50Pcs, 100Pcs
Core Structure	Built-in solder ring + hot melt adhesive
Feature	Waterproof, corrosion resistant, easy connection, insulation sealing, no crimp tool required
Working Principle	Heat to melt solder for welding wires, adhesive melts to seal
Application	Automotive wiring, boat/marine circuit, RV, motorcycle, home electrical, LED light wire repair
Material	Polyolefin heat shrink tube + tin solder ring + hot melt glue

FAQ

Q1: How do solder seal connectors work?
A1: Apply heat evenly with a heat gun. The inner solder melts to join copper wires, and the hot melt glue flows to seal the joint for waterproof insulation.

Q2: Do I need a crimping tool for these terminals?
A2: No crimping tool needed. Only a heat gun is required. They solder and seal in one heating step.

Q3: What does the different color mean?
A3: Each color matches a specific wire gauge range for different cable thicknesses. Check color chart to pick the correct size for your wires.

Q4: Are they waterproof?
A4: Yes. The melted hot glue forms a fully sealed barrier, ideal for outdoor, automotive and marine wiring.

Q5: What is the shrink ratio 3:1?
A5: It can shrink down to 1/3 of its original diameter, fits a wider range of wire bundle sizes.

Q6: Can they be used for motorcycle and boat wiring?
A6: Perfect for marine, motorcycle, car trailer, LED and RV wiring, great for exposed circuits that need moisture protection.