Heat-Shrink Reducing Crimp-On Butt Splices

When heat is applied, adhesive-lined insulation shrinks and bonds to the wires, creating a watertight seal. Use these splices to connect two wires of different sizes—one end of the splice is larger than the other. They are color-coded according to the larger wire gauge size and have a colored stripe to indicate the size of the smaller end.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | Lg. | Color | Insulation Material | Terminal Material | Shrink Temperature, °F | Max. Voltage | Max. Temperature, °F | Pkg. Qty. | Pkg. | |
22-18 × 24-22 | 1.6" | Red with Red Stripe | Polyolefin Plastic | Tin-Plated Copper | 275° | 600V AC 600V DC | 220° | 10 | 0000000 | 000000 |
16-14 × 22-18 | 1.6" | Blue with Red Stripe | Nylon Plastic | Tin-Plated Copper | 195° | 600V AC 600V DC | 220° | 10 | 0000000 | 00000 |
12-10 × 16-14 | 1.8" | Yellow with Blue Stripe | Nylon Plastic | Tin-Plated Copper | 195° | 600V AC 600V DC | 220° | 5 | 0000000 | 00000 |
8 × 12-10 | 1.8" | Red with Red Stripe and Yellow Stripe | Polyolefin Plastic | Tin-Plated Copper | 275° | 600V AC | 220° | 10 | 0000000 | 00000 |
Heat-Shrink Reducing Crimp-On Butt Splices with Inspection Window

Check to make sure you’ve made a secure connection between two different sizes of wire with the inspection window on these splices. When heated, their adhesive-lined insulation shrinks and bonds to wires, creating a water- and corrosion-resistant seal. They have colored stripes to help differentiate end sizes, so you can easily match your wire to the right end.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | Lg. | Color | Insulation Material | Terminal Material | Shrink Temperature, °F | Max. Voltage | Max. Temperature, °F | Pkg. Qty. | Pkg. | |
22-18 × 24-22 | 1.47" | Clear with Red Stripe and White Stripe | Plastic | Tin-Plated Copper | 190° | 600V AC 600V DC | 255° | 10 | 0000000 | 000000 |
16-14 × 22-18 | 1.47" | Clear with Blue Stripe and Red Stripe | Plastic | Tin-Plated Copper | 190° | 600V AC 600V DC | 255° | 10 | 0000000 | 00000 |
12-10 × 16-14 | 1.59" | Clear with Blue Stripe and Yellow Stripe | Plastic | Tin-Plated Copper | 190° | 600V AC 600V DC | 255° | 10 | 0000000 | 00000 |
8 × 12-10 | 1.59" | Clear with Red Stripe and Yellow Stripe | Plastic | Tin-Plated Copper | 190° | 600V AC 600V DC | 255° | 10 | 0000000 | 00000 |
Solder-Loaded Heat-Shrink Reducing Crimp-On Butt Splices

Create a water- and corrosion-resistant seal while connecting two different sizes of wire. When these splices are heated, the solder inside melts and the adhesive liner shrinks and bonds to form the seal. Because of this seal, these splices are the most secure, electrically conductive splices we offer that connect two different sizes of wire. All have a stripe on the smaller end that’s a different color than the body, so you can easily match your wire to the right connector.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | Length | Color | Insulation Material | Terminal Material | Shrink Temperature, °F | Maximum Voltage | Maximum Temperature, °F | Pkg. Qty. | Pkg. | |
22-18 × 26-22 | 1.5" | Red with Red Stripe and White Stripe | Polyolefin Plastic | Tin-Plated Copper | 275° | 600V AC 600V DC | 230° | 10 | 0000000 | 000000 |
16-14 × 22-18 | 1.5" | Blue with Blue Stripe and Red Stripe | Polyolefin Plastic | Tin-Plated Copper | 275° | 600V AC 600V DC | 230° | 10 | 0000000 | 00000 |
12-10 × 16-14 | 1.5" | Yellow with Blue Stripe and Yellow Stripe | Polyolefin Plastic | Tin-Plated Copper | 275° | 600V AC 600V DC | 230° | 10 | 0000000 | 00000 |
8 × 12-10 | 1.75" | Pink with Pink Stripe and Yellow Stripe | Polyolefin Plastic | Tin-Plated Copper | 275° | 600V AC 600V DC | 230° | 10 | 0000000 | 00000 |
Noninsulated Reducing Crimp-On Butt Splices

These splices can withstand higher temperatures than insulated splices. Use them to connect two wires of different sizes. They have colored stripes to help differentiate end sizes, so you can easily match your wire to the right end.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | Lg. | Color | Terminal Material | Max. Voltage | Max. Temperature, °F | Specifications Met | Pkg. Qty. | Pkg. | |
16-14 × 22-18 | 0.7" | Gray with Red Stripe | Tin-Plated Copper | Not Rated | 300° | UL Listed, CSA Certified | 10 | 000000 | 00000 |
12-10 × 16-14 | 0.8" | Gray with Blue Stripe | Tin-Plated Copper | Not Rated | 300° | UL Listed, CSA Certified | 10 | 000000 | 0000 |
8 × 12-10 | 0.9" | Gray with Yellow Stripe | Tin-Plated Copper | Not Rated | 300° | UL Listed, CSA Certified | 10 | 000000 | 00000 |
6 × 8 | 1.1" | Gray with Red Stripe | Tin-Plated Copper | Not Rated | 300° | UL Listed, CSA Certified | 10 | 000000 | 00000 |
Insulated Reducing Crimp-On Butt Splices

A plastic cover fully insulates these splices. Use them to connect two wires of different sizes—one end of the splice is larger than the other. They are color-coded according to the larger wire gauge size and have a colored stripe to indicate the size of the smaller end.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | Lg. | Color | Insulation Material | Terminal Material | Max. Voltage | Max. Temperature, °F | Pkg. Qty. | Pkg. | |
16-14 to 22-18 | 1.1" | Blue with Red Stripe | Vinyl Plastic | Tin-Plated Copper | 600V DC | 220° | 10 | 0000000 | 000000 |
12-10 to 16-14 | 1.3" | Yellow with Blue Stripe | Vinyl Plastic | Tin-Plated Copper | 600V DC | 220° | 10 | 0000000 | 00000 |
8 to 12-10 | 1.5" | Red with Yellow Stripe | Vinyl Plastic | Tin-Plated Copper | 600V DC | 220° | 10 | 0000000 | 00000 |
6 to 8 | 1.8" | Blue with Red Stripe | Vinyl Plastic | Tin-Plated Copper | 600V DC | 220° | 5 | 0000000 | 00000 |
Reducing Compression Butt Splices

Connect two different sizes of wire. These splices are color coded to match compression dies and marked with die reference numbers and wire sizes. A center stop keeps wire at the correct depth. Use these splices with a compression tool (not included).
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | Lg. | Color | For Wire Type | Terminal Material | Max. Voltage | Max. Temperature, °F | Specifications Met | Each | |
4 × 6 | 1.95" | Gray × Blue | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
2 × 6 | 2.11" | Brown × Blue | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 0000 |
2 × 4 | 2.06" | Brown × Gray | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 0000 |
1/0 × 6 | 2.26" | Pink × Blue | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 0000 |
1/0 × 4 | 2.21" | Pink × Gray | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
2/0 × 6 | 2.42" | Black × Blue | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
2/0 × 4 | 2.36" | Black × Gray | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
4/0 × 6 | 2.69" | Purple × Blue | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
4/0 × 1/0 | 2.4" | Purple × Pink | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
4/0 × 2/0 | 2.35" | Purple × Black | Stranded | Tin-Plated Copper | 600V AC | 190° | UL Listed, C-UL Listed | 0000000 | 00000 |
Solder-Loaded Heat-Shrink Wire Splicing Connectors

When you apply heat to these connectors, the solder inside melts to create the most secure, electrically conductive, and environmentally sealed connection we offer. They also have an adhesive-lined insulation that shrinks and bonds to wire when heated, protecting it from water and corrosion.
For technical drawings and 3-D models, click on a part number.
For Wire Gauge | For Wire Type | Color | Insulation Material | Terminal Material | Shrink Temperature, °F | Max. Voltage | Max. Temperature, °F | Specifications Met | Pkg. Qty. | Pkg. | |
18-14 | Stranded | Blue | PVDF Plastic | Copper | 824° | 600V AC 600V DC | 257° | UL Listed, C-UL Listed | 5 | 0000000 | 000000 |
14-12 | Stranded | Blue | PVDF Plastic | Copper | 824° | 600V AC 600V DC | 257° | UL Listed, C-UL Listed | 5 | 0000000 | 00000 |
12-8 | Stranded | Blue | PVDF Plastic | Copper | 824° | 600V AC 600V DC | 257° | UL Listed, C-UL Listed | 5 | 0000000 | 00000 |
Terminal and Splice Assortments

Maintain a supply of extra terminals and splices in various sizes. Use a crimping tool (included with some assortments) to install wire.
Barrel-insulated terminals have a plastic cover to prevent short-circuiting with nearby wire. Fully insulated terminals have a connection tab that’s completely covered, leaving no metal exposed when mated. Noninsulated terminals allow you to easily inspect the wire connection.
Nylon insulation is more durable and chemical resistant than vinyl insulation.
Number of Pieces | Includes | Insulation Material | Max. Temp., °F | Max. Voltage | Each | |
530 | Ring Terminals (16-10 AWG)—Barrel Insulated Ring Terminals (8-6 AWG)—Noninsulated Spade Terminals (16-10 AWG)—Barrel Insulated Female Snap-Plug Terminals (16-14 AWG)—Fully Insulated Male Snap-Plug Terminals (16-14 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-14 AWG)—Barrel Insulated Four-Way Terminals (16-14 AWG)—Barrel Insulated Hook Terminals (16-14 AWG)—Barrel Insulated Butt Splices (16-10 AWG)—Fully Insulated Reducing Butt Splices (16-10 AWG)—Fully Insulated Metal Case | Nylon Plastic, PVC Plastic | 165° | 600V AC 600V DC | 0000000 | 0000000 |
Heat-Shrink Terminal and Splice Assortments

For use where water and contaminants are a concern, the terminals and splices in these assortments have insulation that shrinks and creates a tight seal when heated. Use a crimping tool (included with some assortments) to install wire.
Barrel-insulated terminals have a plastic cover to prevent short-circuiting with nearby wire. Fully insulated terminals have a connection tab that’s completely covered, leaving no metal exposed when mated.
Nylon/polyolefin insulation is more durable than polyolefin insulation.
No. of Pieces | Includes | Shrink Temp., °F | Max. Temp., °F | Max. Voltage | Each | |
Barrel Insulated, Fully Insulated—Nylon Plastic/Polyolefin Plastic | ||||||
---|---|---|---|---|---|---|
300 | Ring Terminals (22-10 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (22-14 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-14 AWG)—Fully Insulated Butt Splices (22-8 AWG)—Fully Insulated Reducing Butt Splices (16-10 AWG)—Fully Insulated Metal Case | 190° | 220° | 600V AC 600V DC | 0000000 | 0000000 |
Barrel Insulated, Fully Insulated—Polyolefin Plastic | ||||||
300 | Ring Terminals (22-10 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (22-14 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-14 AWG)—Fully Insulated Butt Splices (22-8 AWG)—Fully Insulated Reducing Butt Splices (16-10 AWG)—Fully Insulated Metal Case | 270° | 220° | 600V AC 600V DC | 0000000 | 000000 |