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. 534-288A
BrandRS PRO
£0.043
Each (In a Pack of 1000)
Units
Butt 0.5mm² 22 → 16 AWG 1.5mm² 24.5mm 4mm 22AWG Insulated 16AWG Red PVC - Shrouded Copper
RS Stock No. 534-288
BrandRS PRO
£0.087
Each (In a Pack of 100)
Units
Butt 0.5mm² 22 → 16 AWG 1.5mm² 24.5mm 4mm 22AWG Insulated 16AWG Red PVC - Shrouded Copper
RS Stock No. 613-9794
BrandRS PRO
£0.112
Each (In a Pack of 100)
Units
Butt 0.5mm² 22 → 16 AWG 1.5mm² 24.2mm 4mm 22AWG Insulated 16AWG Red Vinyl - Shrouded Copper
RS Stock No. 239-3988
Mfr. Part No.UY2
Brand3M
£13.37
1 Box of 100
Box(es)
Butt - 26 → 19 AWG - - 2.08mm - Insulated - Yellow PP UY2 - -
RS Stock No. 534-648A
BrandRS PRO
£0.04
Each (In a Pack of 1000)
Units
Butt 1.5mm² 16 → 14 AWG 2.5mm² 24.5mm 4.8mm 16AWG Insulated 14AWG Blue PVC - Shrouded Copper
RS Stock No. 534-648
BrandRS PRO
£0.094
Each (In a Pack of 100)
Units
Butt 1.5mm² 16 → 14 AWG 2.5mm² 24.5mm 4.8mm 16AWG Insulated 14AWG Blue PVC - Shrouded Copper
RS Stock No. 533-673
Mfr. Part No.DS-18-22-RS
£0.321
Each (In a Pack of 50)
Units
Butt - 22 → 18 AWG - 36mm 3.7mm - Insulated - Red - DuraSeal - Copper
RS Stock No. 613-9788
BrandRS PRO
£0.15
Each (In a Pack of 100)
Units
Butt 1.5mm² 16 → 14 AWG 2.5mm² 24.2mm 4.5mm 16AWG Insulated 14AWG Blue Vinyl - Shrouded Copper
RS Stock No. 533-667
Mfr. Part No.DS-14-16-RS
£0.31
Each (In a Pack of 50)
Units
Butt - 16 → 14 AWG - 36mm 4.6mm - Insulated - Blue - DuraSeal Shrouded Copper
RS Stock No. 433-078
BrandRS PRO
£0.06
Each (In a Pack of 100)
Units
Butt 0.5mm² 0.5 → 1.5 mm² 1.5mm² 15mm 1.8mm - Uninsulated - - - - Unshrouded Copper
RS Stock No. 534-907
BrandRS PRO
£0.098
Each (In a Pack of 100)
Units
Closed End 0.5mm² 0.5 → 1.5 mm² 1.5mm² 18.1mm 6.6mm 22AWG Insulated 16AWG Clear Nylon - Shrouded Copper
RS Stock No. 444-5659
Mfr. Part No.D-436-36
£1.20
Each (In a Pack of 25)
Units
Butt - 0.15 → 0.75 mm² - 12.95mm 2.03mm - Insulated - Red - MiniSeal - -
RS Stock No. 613-9766
BrandRS PRO
£0.183
Each (In a Pack of 100)
Units
Butt 4mm² 12 → 10 AWG 6mm² 26mm 6.3mm 12AWG Insulated 10AWG Yellow Vinyl - Shrouded Copper
RS Stock No. 510-4775
BrandRS PRO
£15.89
1 Bag of 100
Bag(s)
Butt - 26 → 22 AWG - 12.5mm 7.9mm 26AWG Insulated 22AWG White, Yellow - - Shrouded -
RS Stock No. 764-3382
Mfr. Part No.30-340
BrandIdeal
£0.121
Each (In a Box of 100)
Units
Wire Nut - 22 → 10 AWG - 24.9mm 15.2mm - Insulated - Blue - Twister Series Shrouded Copper
RS Stock No. 161-0197
Mfr. Part No.SCOTCHLOK 314
Brand3M
£1.112
Each (In a Pack of 50)
Units
- - - - - 3.8mm - - - Blue - Scotchlok - Brass
RS Stock No. 170-9398
Mfr. Part No.34070
£109.00
1 Box of 1000
Box(es)
Butt - 22 → 16 AWG - 27.33mm 3.56mm - Insulated - Red - PLASTI-GRIP - Copper
RS Stock No. 842-012
Mfr. Part No.34070
£0.128
Each (In a Pack of 100)
Units
Butt - 22 → 16 AWG - 27.33mm 3.56mm - Insulated - Red - PLASTI-GRIP - Copper
RS Stock No. 467-7014
Mfr. Part No.UB2A
Brand3M
£18.00
1 Box of 100
Box(es)
Tap - 26 → 19 AWG - 16.1mm 9.9mm - Insulated - Blue/Clear PP UB2 Series Shrouded Brass Alloy
RS Stock No. 528-9264
Mfr. Part No.320559
£0.386
Each (In a Pack of 100)
Units
Butt - 22 → 16 AWG - 32.13mm 3.18mm - Insulated - Red Nylon PIDG Shrouded Copper
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