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A collage of Molex butt splice connectors.

Secure Wire-to-Wire Butt Splice Connectors

Butt splice connectors are inline wire-to-wire connectors that join two conductors end-to-end, allowing extension, repair or modification of a harness without changing routing. These connectors provide a solderless crimp termination that enables fast assembly with repeatable performance when used with the proper wire strip length and crimp tooling. Available in insulated and non-insulated styles, and multiple barrel configurations, these connectors are commonly used in automotive, appliances and industrial wiring applications.

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Wire Size Packaging Type Insulation Barrel Type
22 to 1/0 AWG Adhesive tape on reel, carton, embossed tape on reel, reel NiAc, Nylon, PVC, None Closed, Closed-brazed

AviKrimp (Seamless)

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Molex Avikrimp seamless butt splice.

InsulKrimp (Rigid PVC Sleeve)

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Molex InsulKrimp butt splice.

Krimptite (Uninsulated)

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Molex Krimptite butt splice.

NylaKrimp (Funnel Entry)

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Molex NylaKrimp funnel entry butt splice.

Perma-Seal (Heat Shrink Sleeve)

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Molex Perma-Seal butt splice.

VersaKrimp (High-Temperature)

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Molex VersaKrimp high-temperature butt splice.

Datasheets and Guides

Solderless Terminals

Butt splice connectors are types of solderless terminals, which create a crimped wire-to-wire splice to extend or repair wiring. While butt splices solve the inline join, users typically also need end-of-wire terminations such as rings, spades, quick disconnects and flags. These connectors provide fast, repeatable crimp termination without solder, typically using related tooling and selection criteria.

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Molex Solderless Terminals.