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. 531-885
BrandRS PRO
SGD1.847
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 35mm² - - - M10 - Copper Tin
RS Stock No. 613-9283
BrandRS PRO
SGD0.321
Each (In a Pack of 100)
units
- - Insulated Vinyl 8.4mm 15mm 6mm² 4mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 604-8115
Mfr. Part No.1.25-8
BrandJST
SGD12.40
1 Bag of 100
Bag(s)
- - Uninsulated - - - 1.65mm² 0.25mm² 16AWG 22AWG 8mm - - -
RS Stock No. 241-4669
BrandRS PRO
SGD5.401
Each (In a Pack of 10)
units
- - Uninsulated - 12.7mm - 95mm² - - - M12 - Copper Tin
RS Stock No. 613-9609
BrandRS PRO
SGD0.183
Each (In a Pack of 100)
units
- - Insulated Vinyl 3.2mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3 Blue Copper Tin
RS Stock No. 613-9508
BrandRS PRO
SGD0.072
Each (In a Pack of 100)
units
- - Insulated Vinyl 4.3mm 8.5mm 2.5mm² 1.5mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 170-9395
Mfr. Part No.34105
SGD149.10
1 Box of 1000
Box(es)
SOLISTRAND - Uninsulated - 3.68mm 5.54mm 1.65mm² 0.26mm² 16AWG 22AWG M3.5 - Copper Tin
RS Stock No. 531-065
BrandRS PRO
SGD1.343
Each (In a Pack of 10)
units
- - Uninsulated - 6.4mm - 25mm² - - - M6 - Copper Tin
RS Stock No. 170-9394
Mfr. Part No.33461
SGD0.458
Each (In a Box of 100)
units
SOLISTRAND - Uninsulated - 6.73mm 11.91mm 10.5mm² 6.6mm² 8AWG 8AWG M6 - Copper Tin
RS Stock No. 373-320
Mfr. Part No.33461
SGD0.512
Each (In a Pack of 50)
units
SOLISTRAND - Uninsulated - 6.73mm 11.91mm 10.5mm² 6.6mm² 8AWG 8AWG M6 - Copper Tin
RS Stock No. 239-4105
BrandRS PRO
SGD0.214
Each (In a Pack of 100)
units
- - Insulated Nylon 2.7mm 5mm 0.5mm² 0.2mm² 22AWG 26AWG M2.5 Yellow Copper Tin
RS Stock No. 374-115
Mfr. Part No.34105
SGD0.177
Each (In a Pack of 100)
units
SOLISTRAND - Uninsulated - 3.68mm 5.54mm 1.65mm² 0.26mm² 16AWG 22AWG M3.5 - Copper Tin
RS Stock No. 241-4675
BrandRS PRO
SGD3.098
Each (In a Pack of 4)
units
CT - Uninsulated - 12.7mm - 120mm² 120mm² - - M12 - Copper Tin
RS Stock No. 135-5029
Mfr. Part No.320576
SGD0.591
Each (In a Box of 500)
units
PIDG - Insulated Nylon 8.33mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 225-0106
Mfr. Part No.323746
SGD5.717
Each (In a Pack of 10)
units
STRATO-THERM - - - 8.33mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG M8 - Nickel -
RS Stock No. 531-914
BrandRS PRO
SGD3.41
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 70mm² - - - M10 - Copper Tin
RS Stock No. 602-7512
Mfr. Part No.1.25-M4
BrandJST
SGD8.18
1 Bag of 100
Bag(s)
- - Uninsulated - - - 1.65mm² 0.25mm² 16AWG 22AWG 4mm - - -
RS Stock No. 373-493
Mfr. Part No.160002
SGD4.924
Each (In a Pack of 25)
units
SOLISTRAND - Uninsulated - 10.5mm 22.2mm 42.4mm² 26.7mm² 2AWG 2AWG M10 - Copper Tin
RS Stock No. 842-062
Mfr. Part No.34158
SGD0.37
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 3.68mm 6.35mm 2.6mm² 1mm² 14AWG 16AWG M3.5 Blue Copper Tin
RS Stock No. 163-8432
Mfr. Part No.34158
SGD282.45
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 3.68mm 6.35mm 2.6mm² 1mm² 14AWG 16AWG M3.5 Blue Copper Tin