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. 267-6441
BrandRS PRO
SGD0.359
Each (In a Pack of 100)
units
- - Insulated Nylon 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 (1/4) Yellow Copper -
RS Stock No. 241-4631
BrandRS PRO
SGD1.745
Each (In a Pack of 10)
units
- - Uninsulated - 8mm - 35mm² - - - M8 - Copper Tin
RS Stock No. 534-430
BrandRS PRO
SGD0.326
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 6mm² 2.5mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 531-059
BrandRS PRO
SGD0.771
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 16mm² - - - M8 - Copper Tin
RS Stock No. 534-424
BrandRS PRO
SGD0.302
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 14mm 6mm² 2.5mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 531-015
BrandRS PRO
SGD0.401
Each (In a Pack of 25)
units
- - Uninsulated - 5.3mm - 10mm² - - - M5 - Copper Tin
RS Stock No. 534-597
BrandRS PRO
SGD0.107
Each (In a Pack of 100)
units
- - Insulated PVC 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3.5 Blue Copper Tin
RS Stock No. 267-3644
BrandRS PRO
SGD0.173
Each (In a Pack of 100)
units
- - Insulated Nylon 3.7mm 6.6mm 1.5mm² 0.5mm² 16AWG 22AWG M3.5 (#6) Red Copper -
RS Stock No. 119-160
BrandRS PRO
SGD0.317
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 6mm² - - - M6 - Copper Tin
RS Stock No. 241-4653
BrandRS PRO
SGD6.585
Each (In a Pack of 4)
units
- - Uninsulated - 10mm - 120mm² - - - M10 - Copper Tin
RS Stock No. 809-2278
BrandRS PRO
SGD0.37
Each (In a Pack of 50)
units
- - Uninsulated - 8.4mm 14mm 10mm² 10mm² 8AWG 8AWG 8.4mm - Copper -
RS Stock No. 613-9283
BrandRS PRO
SGD0.293
Each (In a Pack of 100)
units
- - Insulated Vinyl 8.4mm 15mm 6mm² 4mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 531-885
BrandRS PRO
SGD1.759
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 35mm² - - - M10 - Copper Tin
RS Stock No. 613-9609
BrandRS PRO
SGD0.15
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. 241-4669
BrandRS PRO
SGD4.699
Each (In a Pack of 10)
units
- - Uninsulated - 12.7mm - 95mm² - - - M12 - Copper Tin
RS Stock No. 613-9508
BrandRS PRO
SGD0.065
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. 239-4105
BrandRS PRO
SGD0.177
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. 531-065
BrandRS PRO
SGD1.279
Each (In a Pack of 10)
units
- - Uninsulated - 6.4mm - 25mm² - - - M6 - Copper Tin
RS Stock No. 241-4675
BrandRS PRO
SGD2.95
Each (In a Pack of 4)
units
CT - Uninsulated - 12.7mm - 120mm² 120mm² - - M12 - Copper Tin
RS Stock No. 531-914
BrandRS PRO
SGD3.248
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 70mm² - - - M10 - Copper Tin
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