Crimp Butt Splice Terminals

Crimp butt splice terminals are tube-shaped connectors with two crimps for joining wires in-line. They typically consist of a metal tube that's usually encased in an insulated covering. Crimp butt splice terminals can be used to either change, lengthen or repair conductors in an electrical circuit.

How do crimp butt splice terminals work?

Crimp butt splice terminals are attached by inserting the stripped ends of two stranded wires into both ends of the terminal. A crimping tool is them used to crimp both ends to ensure a tight connection between the wires.

Types and applications of crimp butt splice terminals

Crimp butt splice terminals are used for electrical connections in numerous industries, including in automotive, commercial, industrial and marine applications. They come in various sizes to suit different wire sizes and can be categorised into two main groups: insulated and non-insulated. Insulated crimp butt splice terminals are usually colour-coded to indicate the size of the wire with which they're compatible.


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Description Price Splice Type Minimum Wire Size mm² Wire Size Maximum Wire Size mm² Overall Length Diameter Minimum Wire Size AWG Insulation Maximum Wire Size AWG Colour Insulation Material Series Shrouded/Unshrouded Contact Material
RS Stock No. 166-7427
Mfr. Part No.FVC-1.25(LF)
BrandJST
£74.86
1 Box of 1000
Box(es)
Butt - 22 → 16 AWG - 22.7mm 4mm - Insulated - Red Nylon, Vinyl FVC - -
RS Stock No. 688-1035
Mfr. Part No.FVC-1.25(LF)
BrandJST
£0.093
Each (In a Pack of 100)
Units
Butt - 22 → 16 AWG - 22.7mm 4mm - Insulated - Red Nylon, Vinyl FVC - -
RS Stock No. 165-7946
Mfr. Part No.P1.25
BrandJST
£46.50
1 Box of 1000
Box(es)
Parallel - 0.25 → 1.65 mm², 22 → 16 AWG - 8mm 3.3mm - Uninsulated - - - P Unshrouded -
RS Stock No. 838-8389
Mfr. Part No.P1.25
BrandJST
£0.065
Each (In a Pack of 100)
Units
Parallel - 0.25 → 1.65 mm², 22 → 16 AWG - 8mm 3.3mm - Uninsulated - - - P Unshrouded -
RS Stock No. 166-7508
Mfr. Part No.FNC-1.25
BrandJST
£0.20
Each (In a Box of 500)
Units
Butt - 0.25 → 1.65, 22 → 16 AWG - 22.7mm - - Insulated - Red Nylon C Shrouded -
RS Stock No. 838-8235
Mfr. Part No.FNC-1.25
BrandJST
£0.296
Each (In a Pack of 50)
Units
Butt - 0.25 → 1.65, 22 → 16 AWG - 22.7mm - - Insulated - Red Nylon C Shrouded -
RS Stock No. 166-7274
Mfr. Part No.C-5.5
BrandJST
£138.42
1 Box of 1000
Box(es)
Butt - 12 → 10 AWG, 2.63 → 6.64 mm² - 15mm 5.4mm - Uninsulated - - - C Unshrouded -
RS Stock No. 838-8373
Mfr. Part No.C-5.5
BrandJST
£0.246
Each (In a Pack of 50)
Units
Butt - 12 → 10 AWG, 2.63 → 6.64 mm² - 15mm 5.4mm - Uninsulated - - - C Unshrouded -
RS Stock No. 166-7559
Mfr. Part No.FVC-2(PA)
BrandJST
£0.097
Each (In a Box of 500)
Units
Butt - 16 → 14 AWG - 22.7mm 4.5mm - Insulated - Blue Nylon, Vinyl FVC - -
RS Stock No. 688-1038
Mfr. Part No.FVC-2(PA)
BrandJST
£0.134
Each (In a Pack of 100)
Units
Butt - 16 → 14 AWG - 22.7mm 4.5mm - Insulated - Blue Nylon, Vinyl FVC - -
RS Stock No. 161-7863
Mfr. Part No.C-8
BrandJST
£0.344
Each (In a Box of 500)
Units
Butt - 8 AWG, 6.64 → 10.52 mm² - 21mm 7mm - Uninsulated - - - C Unshrouded -
RS Stock No. 838-8377
Mfr. Part No.C-8
BrandJST
£0.527
Each (In a Pack of 50)
Units
Butt - 6.64 → 10.52 mm², 8 AWG - 21mm 7mm - Uninsulated - - - C Unshrouded -
RS Stock No. 161-7853
Mfr. Part No.FVP-2
BrandJST
£88.14
1 Box of 1000
Box(es)
Parallel - 16 → 14 AWG - 16mm - - - - - Vinyl - - -
RS Stock No. 688-1149
Mfr. Part No.FVP-2
BrandJST
£0.097
Each (In a Pack of 100)
Units
Parallel - 16 → 14 AWG - 16mm - - - - - Vinyl - - -
RS Stock No. 688-1032
Mfr. Part No.FVC-5.5(LF)
BrandJST
£0.144
Each (In a Pack of 100)
Units
Butt - 12 → 10 AWG - 26.7mm 6.8mm - Insulated - Yellow Nylon, Vinyl FVC - -
RS Stock No. 166-7544
Mfr. Part No.FVC-5.5(LF)
BrandJST
£0.134
Each (In a Box of 250)
Units
Butt - 12 → 10 AWG - 26.7mm 6.8mm - Insulated - Yellow Nylon, Vinyl FVC - -
RS Stock No. 688-1145
Mfr. Part No.FVP-1.25(PA)(LF)
BrandJST
£0.16
Each (In a Pack of 100)
Units
Parallel - 22 → 16 AWG - 16mm - - Insulated - Red Nylon, Vinyl FVP - -
RS Stock No. 166-7454
Mfr. Part No.FVP-1.25(PA)(LF)
BrandJST
£129.39
1 Box of 1000
Box(es)
Parallel - 22 → 16 AWG - 16mm - - Insulated - Red Nylon, Vinyl FVP - -
RS Stock No. 752-1936
Mfr. Part No.CL-1814S
BrandJST
£0.232
Each (In a Pack of 5)
Units
Tap - 18 → 14 AWG - 20mm 14.4mm - Insulated - Blue Nylon CL Series Shrouded Brass
RS Stock No. 172-5016
Mfr. Part No.CL-1814S
BrandJST
£0.194
Each (In a Bag of 500)
Units
Tap - 18 → 14 AWG - 20mm 14.4mm - Insulated - Blue Nylon CL Series Shrouded Brass