Heat-Shrink Butt Splices

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51 Products

Heat-Shrink Crimp-On Butt Splices

When heat is applied, adhesive-lined insulation shrinks and bonds to wires, creating a moisture- and corrosion-resistant seal.

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	Specifications Met	Pkg. Qty.		Pkg.
26-22	1.1"	Clear	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC	220°	UL Listed, C-UL Listed	10	0000000	00000
22-18	1.6"	Red	Nylon Plastic	Tin-Plated Copper	195°	600V AC 600V DC	220°	UL Listed, CSA Certified	10	0000000	00000
16-14	1.6"	Blue	Nylon Plastic	Tin-Plated Copper	195°	600V AC 600V DC	220°	UL Listed, CSA Certified	10	0000000	00000
12-10	1.8"	Yellow	Nylon Plastic	Tin-Plated Copper	195°	600V AC 600V DC	220°	UL Listed, CSA Certified	10	0000000	00000
8	2.1"	Red	Nylon Plastic	Tin-Plated Copper	195°	600V AC 600V DC	220°	UL Listed, CSA Certified	5	0000000	00000

Solder-Loaded Heat-Shrink Crimp-On Butt Splices

The most secure, electrically conductive, and environmentally sealed connection we offer, these splices have enclosed solder and an adhesive-lined insulation that melt when heat is applied. The insulation shrinks and bonds to wire, protecting it from water and corrosion.

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.
24-22	0.88"	Clear	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	000000
22-18	1.33"	Red	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	00000
16-14	1.33"	Blue	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	00000
12-10	1.33"	Yellow	Polyolefin Plastic	Tin-Plated Copper	275°	600V AC 600V DC	220°	10	0000000	00000

Heat-Shrink Crimp-On Butt Splices with Inspection Window

When heat is applied, adhesive-lined insulation shrinks and bonds to the wires, creating a watertight seal. The insulation has an inspection window that allows you to visually confirm your connection.

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	1.5"	Clear with Red Stripe	Polyolefin Plastic	Tin-Plated Copper	195°	600V AC 600V DC	255°	10	0000000	00000
16-14	1.5"	Clear with Blue Stripe	Polyolefin Plastic	Tin-Plated Copper	195°	600V AC 600V DC	255°	10	0000000	0000
12-10	1.6"	Clear with Yellow Stripe	Polyolefin Plastic	Tin-Plated Copper	195°	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

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 No-Crimp Butt Splices

With a ring of solder on the inside, these heat-shrink splices create secure, water-resistant connections between wires without the need for a crimping tool. Instead, heat the splice with a heat gun or butane torch to shrink the tubing, seal the connection, and liquefy the solder.

Because they use solder, these splices make more reliable connections than crimp-on splices. The melted solder fills the gaps between the wires' strands to make the electrical connection. Made of a tin-bismuth alloy, it's safe to use where lead is prohibited. It has a lower melting point than lead, so you're less likely to melt the heat-shrink tubing before melting the solder.

A layer of hot-melt adhesive lines the inside of the heat-shrink tubing to prevent the wires from pulling apart. The adhesive also seals the connection, blocking out water, dust, and other contaminants that can corrode the wire and cause a short.

To help with identification, each size has a different color. All are UL recognized for use with other components in an electrical system. When used with other UL recognized components, such as wires of the correct gauge, they can be part of a UL listed final product.

For Wire Gauge	Lg.	Color	Insulation Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Pkg. Qty.		Pkg.
24-22	0.88"	Clear	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	000000
22-18	1.33"	Red	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	00000
16-14	1.33"	Blue	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	00000
12-10	1.33"	Yellow	Polyolefin Plastic	275°	600V AC 600V DC	230°	10	0000000	00000
8	1.64"	Pink	Polyolefin Plastic	275°	600V AC 600V DC	230°	5	0000000	00000

Underground Heat-Shrink Screw-Down Butt Splices

For 1 Wire

For 3 Wires/UF Cable

Make watertight connections for underground applications. These splices are abrasion-resistant and can withstand burial in rocky soil. They come with a length of heavy-wall polyolefin heat-shrink tubing that fits over the splice. Tighten the screws to connect wires.

For Number of Wires	For Cable Industry Designation	For Number of Ground Wires	For Wire Gauge	For Wire Type	For Wire Material	Insulation Material	Terminal Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Specifications Met	Includes		Each
1	__	__	8-2	Solid, Stranded	Aluminum, Copper	Polyolefin Plastic	Tin-Plated Aluminum	250°	600V AC	190°	UL Listed	2" and 5" lengths of heat-shrink tubing	0000000	000000
3	UF	1	14-8	Solid, Stranded	Copper	Polyolefin Plastic	Tin-Plated Copper	250°	600V AC	190°	UL Listed	8" length of heat-shrink tubing	0000000	00000

Multi-Way Heat-Shrink Crimp-On Butt Splices

Connect one wire to two wires of the same size. When heat is applied, adhesive-lined insulation shrinks and bonds to the wires, creating a moisture- and corrosion-resistant seal.

For technical drawings and 3-D models, click on a part number.

For Wire Gauge	Lg.	Color	For Wire Type	Insulation Material	Terminal Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Features	Pkg. Qty.		Pkg.
24-22	1.8"	Clear with White and Red Dashes	Stranded	Polyolefin Plastic	Tin-Plated Copper	250°	600V AC 600V DC	250°	Inspection Window	10	0000000	000000
22-18	2.1"	Clear with Red and Blue Dashes	Stranded	Polyolefin Plastic	Tin-Plated Copper	250°	600V AC 600V DC	250°	Inspection Window	10	0000000	00000
16-14	2.4"	Clear with Blue and Yellow Dashes	Stranded	Polyolefin Plastic	Tin-Plated Copper	250°	600V AC 600V DC	250°	Inspection Window	5	0000000	0000
12-10	2.6"	Clear with Yellow and Red Dashes	Stranded	Polyolefin Plastic	Tin-Plated Copper	250°	600V AC 600V DC	250°	Inspection Window	5	0000000	00000

Heat-Shrink 3-Way Splices

When heat is applied, adhesive-lined insulation shrinks and bonds to the wires, creating a moisture- and corrosion-resistant seal. Use a single splice to connect multiple wires.

For technical drawings and 3-D models, click on a part number.

For Wire Gauge	Color	Insulation Material	Terminal Material	Shrink Temperature, °F	Max. Voltage	Max. Temperature, °F	Pkg. Qty.		Pkg.
22-18	Red	Plastic Blend	Tin-Plated Copper	195°	600V AC 600V DC	220°	5	00000000	000000
16-14	Blue	Plastic Blend	Tin-Plated Copper	195°	600V AC 600V DC	220°	5	00000000	00000
12-10	Yellow	Plastic Blend	Tin-Plated Copper	195°	600V AC 600V DC	220°	5	00000000	00000

Heat-Shrink Crimp-On Wire Splicing Connectors

Create a secure connection that resists corrosion and water. Crimp these connectors closed after you’ve inserted stripped wires that have been twisted together. The adhesive-lined insulation shrinks when heat is applied, forming a seal. Since they’re fully insulated, there’s no metal exposed when connected.

For technical drawings and 3-D models, click on a part number.

For Wire Gauge	Min. Wire Combination	Max. Wire Combination	For Wire Type	Color	Insulation Material	Terminal Material	Shrink Temp., °F	Max. Voltage	Max. Temp., °F	Specifications Met	Pkg. Qty.		Pkg.
22-14	Two 22-ga. Wires	One 14-ga. Wire with One 20-ga. Wire	Solid, Stranded	Clear	Nylon Plastic	Tin-Plated Copper	250°	600V AC 600V DC	230°	UL Listed, C-UL Listed	10	0000000	000000
18-10	Two 18-ga. Wires	One 10-ga. Wire with One 16-ga. Wire	Solid, Stranded	Clear	Nylon Plastic	Tin-Plated Copper	250°	600V AC 600V DC	230°	UL Listed, C-UL Listed	10	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

Solder-Loaded Heat-Shrink Crimp-On Butt Splice Assortments

When the splices in these assortments are heated, the enclosed solder melts to create the most secure, electrically conductive, and environmentally sealed connection we offer. They have an adhesive-lined insulation that shrinks and bonds to wire when heated, protecting it from water and corrosion.

Fully Insulated—Polyolefin Plastic
Number of Pieces	Includes	Terminal Material	Heat Shrink Liner Material	Shrink Temperature, °F	Maximum Temperature, °F	Maximum Voltage		Each
60	Butt Splices (22-10 AWG)—Fully Insulated Compartmented Plastic Case	Tin-Plated Copper	Adhesive	275°	200°	600V AC 600V DC	0000000	000000

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.

Barrel Insulated, Fully Insulated—Nylon Plastic/Polyolefin Plastic
No. of Pieces	Includes	Shrink Temp., °F	Max. Temp., °F	Max. Voltage	Specifications Met		Each
80	Crimping Tool Ring Terminals (22-10 AWG)—Barrel Insulated Spade Terminals (16-14 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-14 AWG; not UL Listed)—Fully Insulated Butt Splices (22-10 AWG)—Fully Insulated Plastic Case	270°	220°	600V DC	UL Listed	00000000	000000
145	Butane Heat Gun Crimping Tool Ring Terminals (22-10 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-14 AWG)—Fully Insulated Butt Splices (22-10 AWG)—Fully Insulated Plastic Case	270°	220°	600V AC 600V DC	UL Listed	0000000	000000
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	000000
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
525	Butane Heat Gun Cable Tie Tensioning Tool Crimping Tool Ring Terminals (22-10 AWG)—Barrel Insulated Spade Terminals (16-10 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-10 AWG)—Fully Insulated Male and Female Snap-Plug Terminals (16-14 AWG)—Barrel Insulated Butt Splices (22-10 AWG)—Fully Insulated Cable Tie Plastic Case	270°	220°	600V AC 600V DC	UL Listed	0000000	000000
Fully Insulated—Polyolefin Plastic
50	Crimping Tool Butt Splices (22-14 AWG)—Fully Insulated Plastic Case	270°	220°	600V DC	UL Listed	00000000	000000

Solder-Loaded Heat-Shrink Terminal and Splice Assortments

Keep on hand a variety of different sized terminals and splices with the most secure, sealed connection we offer. Heat the outside and the enclosed solder melts to secure your wire. The insulation also shrinks when heated, keeping out water and contaminants.

Ring, quick-disconnect, and spade terminals have insulation covering the barrel to prevent short circuiting with nearby wire. Butt splices have a fully insulated connection tab, so no metal is exposed when they’re mated.

Barrel Insulated, Fully Insulated—Polyolefin Plastic
Number of Pieces	Includes	Heat Shrink Liner Material	Shrink Temperature, °F	Max. Temperature, °F	Max. Voltage		Each
480	Ring Terminals (22-10 AWG)—Barrel Insulated Spade Terminals (22-10 AWG)—Barrel Insulated Male and Female Quick-Disconnect Terminals (16-10 AWG)—Barrel Insulated Butt Splices (26-10 AWG)—Fully Insulated Metal Case	Adhesive	275°	230°	600V AC 600V DC	0000000	0000000