Ring Terminals

A ring terminal is a short metal tube with flat washer type ring attached. The tube or barrel end of the crimp is a hollow tube where the stranded wire is inserted and crimped. The contact or connection end is a flat ring with a central hole which connects to a stud or bolt. Ring terminals are insulated or non-insulated.


What does it do?


An electrical crimp is a solderless electrical connection. Ring terminals are used to connect wiring to screws and studs.


Where are they used?



  • Electrical panels 

  • Terminal blocks

  • Wiring harnesses


Types of Ring Terminal


Crimp terminals are available in a wide variety of ring sizes and wire sizes. The CSA (cross sectional area) or AWG (American wire gauge) of the stranded wire is the most critical. The size of the stranded wire must be adequately matched to meet the amperage. The size of the ring is matched to the bolt or stud size, usually in a metric measurement.


Insulated Terminals


DIN 46237 colour coding is the most popular type of crimp terminal. Colour coding is used to denote a wire size:



  • Red 0.5 mm² to 1.5 mm

  • Yellow 2.5 mm² to 6 mm

  • Blue 1.5 mm² to 2.5 mm


Other colours are available.


Non-insulated


Non-insulated terminals are bigger terminals. Non-insulated terminals connect to bigger studs and bolts. Non-insulated ring terminals have the capacity to except larger stranded wire. More specialised tooling is required for these heavy-duty terminals.


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Description Price Series Series Number Insulation Insulation Material Inner Ring Diameter Outer Ring Diameter Maximum Wire Size mm² Minimum Wire Size mm² Maximum Wire Size AWG Minimum Wire Size AWG Stud Size Colour Contact Material Contact Plating
RS Stock No. 534-468
BrandRS PRO
MYR0.811
Each (In a Pack of 100)
units
- - Insulated PVC 3.7mm 9.1mm 6mm² 2.5mm² 10AWG 12AWG M3.5 Yellow Copper Tin
RS Stock No. 149-546
BrandRS PRO
MYR219.37
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 4.3mm 9.5mm 6mm² 4mm² 10AWG 12AWG M4 (#8) Yellow Copper Tin
RS Stock No. 534-452
BrandRS PRO
MYR0.889
Each (In a Pack of 100)
units
- - Insulated PVC 4.3mm 9.5mm 6mm² 2.5mm² 10AWG 12AWG M4 Yellow Copper Tin
RS Stock No. 119-160
BrandRS PRO
MYR1.141
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 6mm² - - - M6 - Copper Tin
RS Stock No. 241-4647
BrandRS PRO
MYR22.203
Each (In a Pack of 10)
units
- - Uninsulated - 10.3mm - 95mm² - - - M10 - Copper Tin
RS Stock No. 534-193
BrandRS PRO
MYR0.742
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 1.5mm² 0.5mm² 16AWG 22AWG M6 Red Copper Tin
RS Stock No. 531-920
BrandRS PRO
MYR10.429
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 70mm² - - - M12 - Copper Tin
RS Stock No. 241-4704
BrandRS PRO
MYR30.875
Each (In a Pack of 4)
units
CT - Uninsulated - 12.9mm - 150mm² 150mm² - - M12 - Copper Tin
RS Stock No. 241-4669
BrandRS PRO
MYR17.736
Each (In a Pack of 10)
units
- - Uninsulated - 12.7mm - 95mm² - - - M12 - Copper Tin
RS Stock No. 534-569
BrandRS PRO
MYR0.87
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 10.5mm 2.5mm² 1.5mm² 14AWG 16AWG M6 Blue Copper Tin
RS Stock No. 208-2492
BrandRS PRO
MYR0.782
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 12.6mm 1.5mm² 0.5mm² 16AWG 22AWG M8 Red Copper Tin
RS Stock No. 241-4675
BrandRS PRO
MYR10.373
Each (In a Pack of 4)
units
CT - Uninsulated - 12.7mm - 120mm² 120mm² - - M12 - Copper Tin
RS Stock No. 214-3705
Mfr. Part No.34151
MYR1.023
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 8.33mm 11.91mm 1.65mm² 0.26mm² 16AWG 22AWG M8 Red Copper Tin
RS Stock No. 241-4681
BrandRS PRO
MYR30.875
Each (In a Pack of 4)
units
- - Uninsulated - 10.2mm - 150mm² 150mm² - - M10 - Copper Tin
RS Stock No. 119-176
BrandRS PRO
MYR1.184
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm - 6mm² - - - M8 - Copper Tin
RS Stock No. 163-8704
Mfr. Part No.34151
MYR935.34
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 8.33mm 11.91mm 1.65mm² 0.26mm² 16AWG 22AWG M8 Red Copper Tin
RS Stock No. 531-071
BrandRS PRO
MYR3.708
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 25mm² - - - M8 - Copper Tin
RS Stock No. 531-914
BrandRS PRO
MYR11.20
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 70mm² - - - M10 - Copper Tin
RS Stock No. 241-4653
BrandRS PRO
MYR22.705
Each (In a Pack of 4)
units
- - Uninsulated - 10mm - 120mm² - - - M10 - Copper Tin
RS Stock No. 531-037
BrandRS PRO
MYR1.753
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm - 10mm² - - - M8 - Copper Tin