Butt Connectors
Safely connect one or more wires to another wire with our large selection of butt connectors. Butt connectors are designed for electrical professionals and technicians but are also commonly used in the automotive, marine, power management, solar, data transmission, aerospace, communications and industrial equipment industries.
Pro-Tech™ Nytrex Fully Insulated Heat Shrink Butt Connectors
Combine heat shrink tubing and Techni-Crimp terminals in one ready-to-use product. Featuring Therma-Flow sealant to lock out corrosion and provide strain relief, these connectors ensure reliable, sealed connections. The clear, color-coded Nytrex tubing allows visual inspection and shrinks easily with heat from a lighter or heat gun. Ideal for all-weather applications and compatible with SXL Cross-Link Primary Wire.
Wire Diameter: 8 AWG
| Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|
| 600V | Red | 10 |
NDSN654
|
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Wire Diameter: 26 - 22 AWG
| Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|
| 600V | Green | 25 |
NBC1611
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Wire Diameter: 22 - 18 AWG
| Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|
| 600V | Red | 25 |
NASN3451
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| 600V | Red | 50 |
NASN345
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| 600V | Red | 250 |
NASN345L
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Wire Diameter: 16 - 14 AWG
| Voltage | Color | Package Qty | Item # |
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|---|---|---|---|---|
| 600V | Blue | 25 |
NBSN3311
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| 600V | Blue | 50 |
NBSN331
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| 600V | Blue | 250 |
NBSN331L
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Wire Diameter: 12 - 10 AWG
| Voltage | Color | Package Qty | Item # |
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|---|---|---|---|---|
| 600V | Yellow | 25 |
NCSN3461
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| 600V | Yellow | 50 |
NCSN346
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| 600V | Yellow | 250 |
NCSN346L
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Pro-Tech™ Nytrex Heat Shrink Butt Connectors with Dispenser Jar
Combine heat shrink tubing and Techni-Crimp terminals for reliable, sealed connections. Therma-Flow sealant locks out corrosion and provides strain relief. The clear, color-coded Nytrex tubing allows visual inspection and shrinks easily with heat. Supplied in a convenient dispenser jar for easy access and storage. Ideal for all-weather applications and compatible with SXL Cross-Link Primary Wire.
| Wire Diameter | Voltage | Color | Number of Pieces | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 100 | 1 |
NASN345D
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| 22 - 18 AWG | 600V | Red | 300 | 1 |
NASN345J
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| 16 - 14 AWG | 600V | Blue | 100 | 1 |
NBSN331D
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| 16 - 14 AWG | 600V | Blue | 250 | 1 |
NBSN331J
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| 12 - 10 AWG | 600V | Yellow | 60 | 1 |
NCSN346D
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| 12 - 10 AWG | 600V | Yellow | 150 | 1 |
NCSN346J
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Pro-Tech™ Nytrex Step Down Butt Connectors
Join two wires on one side to one wire on the other, perfect for connecting wires of different gauges. Features super-tough Nytrex heat shrink tubing that seals securely when heated, and Therma-Flow sealant to prevent wire pull-out. Color-coded stripes on the step-down end provide easy identification. Ideal for compact, reliable connections in all-weather applications. Simply crimp and apply heat for a sealed connection.
| Wire Diameter | Joins | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 26 - 14 AWG | Two 26-22 to One 26-22 or One 16-14 to One 26-22 | 600V | Blue | 10 |
NBC2214
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| 22 - 14 AWG | Two 22-18 to One 22-18 or One 16-14 to One 22-18 | 600V | Blue | 10 |
NAB2214
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| 16 - 10 AWG | Two 16-14 to One 16-14 or One 12-10 to One 16-14 | 600V | Yellow | 10 |
NBC1610
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| 12 - 8 AWG | Two 12-10 to One 12-10 or One 8 to One 12-10 | 600V | Red | 10 |
NCD1208
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Nytrex Fully Insulated Heat Shrink Window Butt Connectors
Ideal for secure, sealed wire connections with easy inspection. Featuring super-tough Nytrex heat shrink tubing that seals securely when heated with a lighter or heat gun. The built-in inspection window and crystal-clear tubing allow visual verification of the connection. Therma-Flow sealant provides strain relief and prevents wire pull-out. Color-coded bands and built-in wire stop ensure correct wire gauge usage and proper insertion.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Clear | 25 |
NASW345
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| 16 - 14 AWG | 600V | Blue | 25 |
NBSW331
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| 12 - 10 AWG | 600V | Yellow | 25 |
NCSW346
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Pro-Tech™ Commercial Grade Heat Shrink Butt Connectors
Offer sealed, all-weather connections to prevent corrosion-related failures. Combining heat shrink tubing and Techni-Crimp terminals in one product, they seal easily with heat from a lighter or heat gun. Therma-Flow sealant melts during installation, locking out moisture. Made with polyolefin heat shrink tubing suitable for a wide range of applications. A cost-effective alternative where extreme durability isn't required. Use with PVC Insulated Primary Wire for optimal results.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 8 AWG | 600V | Red | 10 |
PDSN654
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| 26 - 22 AWG | 600V | Yellow | 10 |
PMSN520
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| 26 - 18 AWG | 600V | Blue | 25 |
PAB2214
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| 22 - 18 AWG | 600V | Red | 50 |
PASN3452
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| 22 - 18 AWG | 600V | Red | 100 |
PASN345
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| 22 - 18 AWG | 600V | Red | 250 |
PASN345L
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| 16 - 14 AWG | 600V | Blue | 50 |
PBSN3312
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| 16 - 14 AWG | 600V | Blue | 100 |
PBSN331
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| 16 - 14 AWG | 600V | Blue | 250 |
PBSN331L
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| 16 - 10 AWG | 600V | Yellow | 25 |
PBC1610
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| 12 - 10 AWG | 600V | Yellow | 50 |
PCSN3462
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| 12 - 10 AWG | 600V | Yellow | 100 |
PCSN346
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Pro-Tech™ Commercial Grade Heat Shrink Butt Connectors with Dispenser Jar
Offer sealed, all-weather connections to prevent corrosion-related failures. Combining heat shrink tubing and Techni-Crimp terminals, they seal easily with heat. Therma-Flow sealant melts during installation, locking out moisture. Made with polyolefin heat shrink tubing suitable for various applications. A cost-effective option where extreme durability isn't required. Comes in a dispenser jar for convenience. Use with PVC Insulated Primary Wire for optimal results.
| Wire Diameter | Voltage | Color | Number of Pieces | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 100 | 1 |
PASN345D
|
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| 22 - 18 AWG | 600V | Red | 250 | 1 |
PASN345J
|
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| 16 - 14 AWG | 600V | Blue | 100 | 1 |
PBSN331D
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| 16 - 14 AWG | 600V | Blue | 250 | 1 |
PBSN331J
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| 12 - 10 AWG | 600V | Yellow | 100 | 1 |
PCSN346D
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| 12 - 10 AWG | 600V | Yellow | 250 | 1 |
PCSN346J
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Enduralon™ Insulated Standard Butt Connectors
Provide reliable, insulated wire connections with Enduralon™ nylon insulation for durability and wide temperature resistance. The funnel-shaped barrel allows for smooth wire insertion, speeding up installation. Suitable for operating temperatures from -40°F to 250°F continuous, up to 350°F intermittent. Ideal for general electrical applications requiring dependable performance and insulation. Use appropriate crimping tools for best results.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 8 AWG | 600V | Red | 25 |
D958
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| 6 AWG | 600V | Blue | 25 |
E956
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| 4 AWG | 600V | Yellow | 25 |
F964
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| 24 - 20 AWG | 600V | Yellow | 50 |
MSN820
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| 22 - 18 AWG | 600V | Red | 50 |
ASN3451
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| 22 - 18 AWG | 600V | Red | 100 |
ASN345
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| 16 - 14 AWG | 600V | Blue | 50 |
BSN3311
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| 16 - 14 AWG | 600V | Blue | 100 |
BSN331
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| 12 - 10 AWG | 600V | Yellow | 50 |
CSN3461
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| 12 - 10 AWG | 600V | Yellow | 100 |
CSN346
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Enduralon™ Fully Insulated Insulock™ Butt Connectors
Provide durable, insulated wire connections with these connectors featuring Enduralon™ nylon insulation. The funnel-shaped barrel allows easy wire insertion, while the Insulock™ grip sleeve locks onto the wire insulation to prevent pull-out. Suitable for a wide operating temperature range from -40°F to 250°F continuous, up to 350°F intermittent. Ideal for applications requiring reliable, long-lasting electrical connections.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 50 |
ASN3501
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| 22 - 18 AWG | 600V | Red | 100 |
ASN350
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| 16 - 14 AWG | 600V | Blue | 50 |
BSN3501
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| 16 - 14 AWG | 600V | Blue | 100 |
BSN350
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| 12 - 10 AWG | 600V | Yellow | 50 |
CSN3501
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| 12 - 10 AWG | 600V | Yellow | 100 |
CSN350
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Enduralon™ Closed End "Pig Tail" Connectors
Quickly and easily "pigtail" solid or stranded wires together with these closed-end connectors. Simply insert stripped wires and crimp once for a secure connection. Made from durable materials and rated for up to 600 volts in building wire and 1,000 volts inside a sign or fixture. Ideal for electrical installations requiring reliable wire bundling in a compact form.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 8 AWG | 600V | Clear | 25 |
DNC8
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| 22 - 14 AWG | 600V | Clear | 100 |
ANC2212
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| 22 - 12 AWG | 600V | Clear | 100 |
ANC2214
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| 16 - 10 AWG | 600V | Clear | 50 |
BNC1610
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Enduralon™ Ultra Butt Connectors with Corro-Guard Sealant
Protect electrical connections from corrosion with these premium connectors filled with Corro-Guard dielectric grease. Made with Enduralon™ nylon for durability, they feature dual Insulock™ grip sleeves to prevent wire pull-out. Ideal for exposed wiring on trucks, trailers, boats, and RVs. Withstand temperatures from -50°F to 220°F and resist washout—even under steam cleaning. Ensure complete wire insertion with the automatic depth stop.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 25 |
ASN360
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| 16 - 14 AWG | 600V | Blue | 25 |
BSN360
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| 12 - 10 AWG | 600V | Yellow | 25 |
CSN360
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Enduralon™ Insulated Insulock™ Window Butt Connectors
Designed for maximum reliability in electrical connections. These connectors feature a built-in inspection window for verifying wire insertion and crimp quality. The transparent nylon insulation ensures correct crimp tool placement, while the Insulock™ grip crimps onto the wire insulation to prevent pull-out. An automatic wire depth stop ensures proper insertion. Ideal for critical applications, meeting Mil-T-7928/5 Class 1 standards.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 25 |
ASW345
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| 16 - 14 AWG | 600V | Blue | 25 |
BSW331
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| 12 - 10 AWG | 600V | Yellow | 25 |
CSW346
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Maxi-Link Hi-Flow Heat Shrink Butt Connectors
Designed for connecting one wire to two or joining wires of different sizes. The Maxi-Link crimp design ensures reliable electrical connections. Featuring 4:1 heat shrink tubing and Hi-Flow sealant, they create a complete, sealed connection even around smaller wires. Ideal for multi-wire installations, these connectors provide easy installation and maximum reliability. Simply crimp and apply heat to seal.
| Wire Diameter | Joins | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 24 - 18 AWG | Two 24-22 to One 24-22 or One 20-18 to One 24-22 | 600V | Clear | 10 |
ML2418
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| 20 - 14 AWG | Two 20-18 to One 20-18 or One 16-14 to One 20-18 | 600V | Clear | 10 |
ML2014
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| 16 - 10 AWG | Two 16-14 to One 16-14 or One 12-10 to One 16-14 | 600V | Blue | 10 |
ML1610
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| 12 - 8 AWG | Two 12-10 to One 12-10 or One 8 to One 12-10 | 600V | Clear | 10 |
ML1208
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Maxi-Link Hi-Flow Heat Shrink Butt Connectors with Dispenser Jar
Ideal for connecting multiple wires or wires of different sizes. The unique design allows one wire to connect to two, accommodating step-down connections between smaller and larger wires. Featuring 4:1 heat shrink tubing and Hi-Flow sealant, these connectors ensure a complete, sealed connection. The Maxi-Link crimp design provides reliable electrical connections. Comes in a convenient dispenser jar for easy access on the job.
| Wire Diameter | Voltage | Color | Number of Pieces | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 24 - 18 AWG | 600V | Clear | 50 | 1 |
ML2418D
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| 20 - 14 AWG | 600V | Clear | 50 | 1 |
ML2014D
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| 16 - 10 AWG | 600V | Blue | 35 | 1 |
ML1610D
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| 12 - 8 AWG | 600V | Clear | 25 | 1 |
ML1208D
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Maxi-Link Hi-Flow Heat Shrink Closed End Connectors
Perfect for connecting up to four wires securely, replacing wire nuts in corrosion-prone areas. Featuring 4:1 heat shrink tubing and Hi-Flow sealant, these connectors ensure a tight seal around multiple wires. The Maxi-Link crimp design offers superior electrical connectivity. Supplied in a convenient dispenser jar for easy storage and access. Simply crimp and apply heat for a reliable, sealed connection.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 14 AWG | 600V | Blue | 25 |
MLC2214
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| 18 - 10 AWG | 600V | Clear | 25 |
MLC1810
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Maxi-Link Hi-Flow Heat Shrink Closed End Connectors with Dispenser Jar
Connect up to four wires securely, replacing wire nuts in corrosive environments. The 4:1 heat shrink tubing and Hi-Flow sealant create a tight seal around multiple wires. The Maxi-Link crimp design ensures superior electrical connectivity. Supplied in a convenient dispenser jar for easy storage and portability. Installation is quick—simply crimp and apply heat for a reliable, sealed connection.
| Wire Diameter | Voltage | Color | Number of Pieces | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 22 - 14 AWG | 600V | Blue | 50 | 1 |
MLC2214D
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| 18 - 10 AWG | 600V | Clear | 50 | 1 |
MLC1810D
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Non-Insulated Butt Connectors
Ideal for creating secure electrical splices where insulation is not required. Made from premium electrolytic copper for maximum conductivity and strength, the one-piece design ensures uniform current flow. Wire size is clearly stamped on each terminal for easy identification. The full barrel length allows for a wide crimp, providing extra strength. For best results, use appropriate crimping tools and ensure wires are clean before connecting.
Style: Seamless
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Silver | 50 |
AS345
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|
Package Weight: 0.1 lbs
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| 16 - 14 AWG | 600V | Silver | 100 |
BS331
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Package Weight: 0.3 lbs
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| 12 - 10 AWG | 600V | Silver | 100 |
CS346
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Package Weight: 0.6 lbs
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Style: Standard
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Silver | 100 |
A145
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Package Weight: 0.2 lbs
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| 16 - 14 AWG | 600V | Silver | 100 |
B131
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Package Weight: 0.3 lbs
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| 12 - 10 AWG | 600V | Silver | 100 |
C146
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Package Weight: 0.4 lbs
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Heavy-Duty Non-Insulated Butt Connectors
Perfect for connecting heavy-gauge wires in demanding electrical applications. Crafted from pure electrolytic copper with electro-tin plating, they offer excellent conductivity and corrosion resistance. The robust barrel design prevents splitting and allows crimping from any angle. Chamfered edges with deep "V" grooves facilitate easy wire insertion and a strong hold. Ensure wires are clean and use proper crimping tools for optimal performance.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 8 AWG | 600V | Silver | 25 |
D354
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Package Weight: 0.3 lbs
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| 6 AWG | 600V | Silver | 25 |
E362
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Package Weight: 0.4 lbs
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| 4 AWG | 600V | Silver | 25 |
F364
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Package Weight: 0.8 lbs
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| 2 AWG | 600V | Silver | 10 |
G372
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Package Weight: 0.4 lbs
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Color-Coded Non-Insulated Butt Connectors
Perfect for secure wire splicing without added insulation. Featuring color-coded bands for easy wire gauge identification and brazed seam barrels to prevent splitting. The built-in inspection window allows for visual confirmation of proper wire insertion and crimping. Electro-tin plating enhances corrosion resistance. Ideal for applications where insulation is provided separately or not required. Use appropriate crimping tools for optimal results.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 25 |
AS345CC
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| 16 - 14 AWG | 600V | Blue | 25 |
BS331CC
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| 12 - 10 AWG | 600V | Yellow | 25 |
CS346CC
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Package Weight: 0.1 lbs
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Heavy-Duty Non-Insulated Parallel Splice
Ideal for connecting heavy-gauge electrical wires, this splice offers reliable performance in demanding applications. Made from pure electrolytic copper with electro-tin plating, it ensures maximum conductivity and corrosion resistance. The barrel design prevents splitting and allows crimping from any direction. For best results, crimp securely using appropriate tools and ensure wires are clean before splicing.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 6 AWG | 600V | Silver | 25 |
E361
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Package Weight: 0.2 lbs
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High-Temperature Non-Insulated Heavy-Duty Butt Connectors
Designed for high-temperature applications up to 900°F continuous and 1200°F intermittent, such as ovens and furnaces. Made from alloy steel with bright nickel plating for exceptional durability and corrosion resistance. Ideal for high-stress environments where non-heat-related performance is crucial. For optimal results, ensure clean wire ends and use appropriate crimping tools for a secure connection.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Silver | 50 |
AS145
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| 16 - 14 AWG | 600V | Silver | 50 |
BS131
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| 12 - 10 AWG | 600V | Silver | 50 |
CS146
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Sta-Kon® Nylon Insulated Butt Connectors
Ideal for reliable wire splices in electrical systems. Constructed from electro-tin plated copper for superior conductivity and corrosion resistance, these connectors feature a bronze insulation grip sleeve to prevent wire pull-out and a serrated inner barrel for a secure grip. The funnel entry design ensures easy wire insertion. For best results, use with matching installation tools for a perfect crimp.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 50 |
22418
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| 16 - 14 AWG | 600V | Blue | 50 |
22438
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| 12 - 10 AWG | 600V | Yellow | 50 |
22458
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Ultra-Link & Solder Visual Indicator Butt Connectors
Ensure secure, soldered wire connections with a visual indicator. The red flux disappears when the solder melts, confirming a proper connection. Features a brazed seam crimp connector and pre-fluxed, low-temperature solder for superior conductivity and tensile strength. Clear shrink tubing allows visual inspection and provides insulation. Rated for 600V and 221°F. After crimping, apply heat to melt solder and shrink tubing for a sealed connection.
| Wire Diameter | Voltage | Color | Number of Pieces | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 20 | 20 |
ASUV345
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| 22 - 18 AWG | 600V | Red | 350 | 1 |
ASUV345J
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| 16 - 14 AWG | 600V | Blue | 20 | 20 |
BSUV331
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| 16 - 14 AWG | 600V | Blue | 250 | 1 |
BSUV331J
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| 12 - 10 AWG | 600V | Yellow | 20 | 20 |
CSUV346
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| 12 - 10 AWG | 600V | Yellow | 150 | 1 |
CSUV346J
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Ultra-Link Polyolefin Insulated Crimp & Solder Butt Connectors
Designed for high-reliability electrical connections. These connectors feature a brazed seam crimp for a secure mechanical bond and pre-fluxed, low-temperature solder for superior conductivity and tensile strength. The clear shrink tubing allows for visual inspection and provides excellent insulation. Rated for 600V and 105°C, they meet or exceed stringent OEM requirements. After crimping, apply heat to melt the solder and shrink the tubing.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 24 - 22 AWG | 600V | White | 20 |
MSU520
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| 12 - 10 AWG | 600V | Yellow | 20 |
CSU346
|
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Ultra-Link Crimp & Solder Step Down Butt Connectors
Ideal for connecting wires of different gauges or multiple smaller wires to a larger one. The internal splice connector provides reliable connections in a compact form. Features lead-free solder for strong tensile strength and seamless crimp for secure mechanical connection. Clear shrink tubing allows inspection, and Therma-Flow sealant prevents corrosion and wire pull-out. Color-coded stripes aid in wire size identification.
| Wire Diameter | Joins | Voltage | Color | Package Qty | Item # |
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|---|---|---|---|---|---|---|
| 26 - 18 AWG | One 26-24 to One 22-18 | 600V | Red | 10 |
SDU2418
|
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| 22 - 14 AWG | One 22-18 to One 16-14 | 600V | Blue | 10 |
SDU2014
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| 16 - 10 AWG | One 16-14 to One 12-10 | 600V | Yellow | 10 |
SDU1610
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| 12 - 8 AWG | One 12-10 to One 8 | 600V | Red | 10 |
SDU1208
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Bond & Seal™ Heatless Solderless Butt Connectors
Create sealed, reliable wire connections without heat. Simply strip the wire, insert into the connector, and crimp. The unique anaerobic sealant cures in the absence of oxygen, forming a moisture-proof connection that prevents corrosion. Nylon insulation provides durability and abrasion resistance. Installs quickly and is fully cured in 2-3 hours. Ideal for environments where heat application is impractical or unsafe.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
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|---|---|---|---|---|---|
| 16 - 14 AWG | 600V | Blue | 25 |
BBS3311
|
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| 16 - 14 AWG | 600V | Blue | 50 |
BBS331
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Bond & Seal™ Fully Insulated Step Down Butt Connectors
Connect two wires to one with these innovative connectors that seal themselves without heat. Simply strip, insert, and crimp—the anaerobic sealant activates upon crimping to form a moisture-proof connection. Nylon insulation offers durability and abrasion resistance. Installs quickly and cures fully in 2-3 hours. Ideal for environments where heat application is impractical. Provides superior conductivity and pull-out resistance. Made in the U.S.A.
| Wire Diameter | Joins | Color | Package Qty | Item # |
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|---|---|---|---|---|---|
| 22 - 14 AWG | Two 22-18 to One 22-18 or One 16-14 to One 22-18 | Blue | 10 |
ABBS345
|
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| 16 - 10 AWG | Two 16-14 to One 16-14 or One 12-10 to One 16-14 | Blue | 10 |
BCBS331
|
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E-Z Crimp Step Down Butt Connectors
Simplify connections between wires of different sizes with these actual "step down" connectors. The varied diameter provides consistent wall thickness for superior crimping on both small and large wires. Features a built-in inspection window and wire stop for proper insertion and secure connection. Made from electrolytic copper for maximum conductivity. Color-coded stripes indicate wire sizes and matching crimp dies. Ideal for quick, reliable installations.
| Wire Diameter | Joins | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 26 - 18 AWG | One 26-24 to One 22-18 | 600V | Red | 25 |
SD2418
|
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| 22 - 14 AWG | One 22-18 to One 16-14 | 600V | Blue | 25 |
SD2014
|
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| 16 - 10 AWG | One 16-14 to One 12-10 | 600V | Yellow | 25 |
SD1610
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| 12 - 8 AWG | One 12-10 to One 8 | 600V | Pink | 25 |
SD1208
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SolderConn™ Self-Soldering Visual Indicator Butt Connectors
Simplify your wire splicing with these self-soldering connectors. The red flux disappears when the solder melts, visually indicating a proper connection. In one step, the connection is soldered, insulated, and sealed against corrosion without crimping. Therma-Flow sealant provides strain relief to prevent wire pull-out. Suitable for temperatures from -65°F to 275°F, with a dielectric strength of 15,000 volts. Apply heat to melt solder and seal.
| Wire Diameter | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|
| 22 - 18 AWG | Red | 25 |
ASSV345
|
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| 16 - 14 AWG | Blue | 25 |
BSSV331
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| 12 - 10 AWG | Yellow | 25 |
CSSV346
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Step Down Butt Connectors
Designed to join two wires on one side to a single wire on the other, ideal for connecting wires of different gauges. These connectors replace bulky three-way connectors with a compact, reliable crimp connection. Color-coded stripes on the step-down end provide easy wire size identification. For added protection, seal the connection with heat shrink tubing, electrical tape, or liquid electrical tape after crimping.
| Wire Diameter | Joins | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|---|
| 22 - 14 AWG | Two 22-18 to One 22-18 or One 16-14 to One 22-18 | 600V | Blue | 25 |
AB2214
|
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|
Package Weight: 0.1 lbs
|
||||||
| 16 - 14 AWG | Two 16-14 to One 16-14 or One 12-10 to One 16-14 | 600V | Blue | 25 |
BC1610
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Package Weight: 0.2 lbs
|
||||||
Pro-Tech™ Nylon Heat Shrink Butt Connector (Yellow Insulated)
Designed for secure and sealed wire connections in electrical systems. This connector combines crimping and heat shrink sealing in one step, with Therma-Flow sealant to lock out corrosion and provide strain relief. The clear, color-coded tubing allows visual inspection of the connection. After crimping, simply apply heat with a lighter or heat gun to seal.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
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|---|---|---|---|---|---|
| 24 - 22 AWG | 600V | Yellow | 25 |
SMSN520
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SolderConn Insulated Self-Soldering Butt Connectors
Achieve soldered, insulated, and sealed wire connections in one step. Simply insert the wires and apply heat; the built-in solder melts to form a strong electrical bond, while Therma-Flow sealant provides strain relief and seals against corrosion. With a tensile strength of 2,200 PSI and pullout strength exceeding 150 lbs, these connectors offer durable, vibration-resistant connections. Suitable for temperatures from -65°F to 275°F with a dielectric strength of 15,000 volts.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
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|---|---|---|---|---|---|
| 24 - 20 AWG | 600V | White | 25 |
MSS520
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Pro-Tech™ Extreme Polyolefin Insulated Butt Connectors
Built for the most demanding applications, these connectors offer exceptional durability. Featuring a nylon inner insulation layer for wide temperature resistance and abrasion protection, plus a polyolefin heat shrink outer layer. Therma-Flow sealant melts during installation to provide strain relief and a waterproof seal. The seamless copper conductor ensures maximum crimp strength and conductivity. Shrinks easily with heat for a sealed connection.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 22 - 18 AWG | 600V | Red | 25 |
ASX345
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| 16 - 14 AWG | 600V | Blue | 25 |
BSX331
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| 12 - 10 AWG | 600V | Yellow | 25 |
CSX346
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Insulated Weathertite Crimp Free Connectors
Achieve sealed, vibration-proof connections without crimping. Simply strip wires, insert into the connector, and hand-tighten for a connection up to four times stronger than crimped ones. The unique design seals out water, chemicals, dust, and contaminants, eliminating the need for heat shrink tubing or dielectric grease. Suitable for high-temperature applications up to 248°F and meets SAEJ1211 standards. Reusable and ideal for AC and DC stranded wire up to 600 volts.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 18 AWG | 600V | Red | 10 |
22940
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| 12 AWG | 600V | Yellow | 10 |
22942
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| 10 AWG | 600V | Green | 10 |
22943
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| 8 AWG | 600V | Brown | 10 |
22944
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| 16 - 14 AWG | 600V | Blue | 10 |
22941
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Insulated Posi-Lock No Crimp Connectors
Achieve reliable, reusable wire connections without crimping. Simply strip the wire, insert into the connector, and hand-tighten. The patented design locks wires securely in place, providing high pull-out resistance—up to four times stronger than crimped connections. Ideal for high-temperature applications up to 250°C and resistant to fuels, oils, and solvents. Suitable for both permanent and temporary installations. UL listed for 600VAC.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 20 - 18 AWG | 600V | Red | 10 |
22316
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| 12 - 10 AWG | 600V | Yellow | 10 |
22327
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Insulated Posi-Twist Crimp Free Connectors
Achieve stronger connections without crimping. Strip the wires, insert into the connector, and hand-tighten for a connection up to four times stronger than crimping. Vibration-proof and reusable, they are suitable for high-temperature applications up to 248°F. Made of non-corroding nylon 6/6 for high conductivity and resistance to chemicals. Ideal for both AC and DC applications up to 600 volts with stranded wire.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 26 - 20 AWG | 600V | Gray | 10 |
22935
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| 24 - 14 AWG | 600V | Blue | 10 |
22936
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| 22 - 10 AWG | 600V | Yellow | 10 |
22937
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Qwiksplice Push-In Butt Connectors
Simplify wire splicing with these crimp-free, push-in connectors. Eliminating the need for crimping tools, they offer fast and easy installation, reducing downtime. Versatile design accepts stranded 12-16 AWG and solid 12-20 AWG wires. The compact, low-profile design fits where conventional connectors can. A transparent shell allows visual inspection, and the built-in test port enables troubleshooting without disassembly. Rated for 600V/20A and UL Listed.
| Wire Diameter | Voltage | Color | Package Qty | Item # |
Price
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|---|---|---|---|---|---|
| 20 - 12 AWG | 600V | Yellow | 50 |
22893
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Package Weight: 0.2 lbs
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Butt Connector Variety
Butt connectors are available in a wide range of sizes to fit wires from 26 gauge to 4/0. Kimball Midwest offers butt connectors in various styles to fit your needs. Choose from heat shrink, self-soldering, extreme puncture or heat resistance, non-insulated and more.
High-Quality Butt Connectors
Our butt connectors are manufactured to meet stringent industry standards, guaranteeing durability in demanding environments. These connectors are ideal for splicing wires together, providing a strong and permanent bond that is resistant to corrosion and wear. When quality matters, our products deliver the reliability you need for your projects.
Contact A Representative
Get in touch with a Kimball Midwest representative today to learn more about our butt connector options and how they can benefit your shop.
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