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. 534-216
BrandRS PRO
MYR0.734
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 6mm 1.5mm² 0.5mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 531-087
BrandRS PRO
MYR4.205
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 25mm² - - - M10 - Copper Tin
RS Stock No. 531-885
BrandRS PRO
MYR7.619
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 35mm² - - - M10 - Copper Tin
RS Stock No. 534-430
BrandRS PRO
MYR1.568
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 6mm² 2.5mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 534-200
BrandRS PRO
MYR0.433
Each (In a Pack of 100)
units
- - Insulated PVC 5.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M5 Red Copper Tin
RS Stock No. 531-908
BrandRS PRO
MYR9.051
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 50mm² - - - M12 - Copper Tin
RS Stock No. 534-238
BrandRS PRO
MYR0.61
Each (In a Pack of 100)
units
- - Insulated PVC 3.2mm 5.5mm 1.5mm² 0.5mm² 16AWG 22AWG M3 Red Copper Tin
RS Stock No. 531-043
BrandRS PRO
MYR3.071
Each (In a Pack of 10)
units
- - Uninsulated - 6.4mm - 16mm² - - - M6 - Copper Tin
RS Stock No. 534-581
BrandRS PRO
MYR0.563
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 8mm 2.5mm² 1.5mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 534-446
BrandRS PRO
MYR1.057
Each (In a Pack of 100)
units
- - Insulated PVC 5.3mm 9.5mm 6mm² 2.5mm² 10AWG 12AWG M5 Yellow Copper Tin
RS Stock No. 149-530
BrandRS PRO
MYR100.27
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 5.3mm 9.5mm 6mm² 4mm² 10AWG 12AWG M5 (#10) Yellow Copper Tin
RS Stock No. 534-575
BrandRS PRO
MYR0.603
Each (In a Pack of 100)
units
- - Insulated PVC 5.3mm 9.5mm 2.5mm² 1.5mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 534-424
BrandRS PRO
MYR1.354
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 14mm 6mm² 2.5mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 534-468
BrandRS PRO
MYR0.957
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. 241-4647
BrandRS PRO
MYR15.481
Each (In a Pack of 10)
units
- - Uninsulated - 10.3mm - 95mm² - - - M10 - Copper Tin
RS Stock No. 119-160
BrandRS PRO
MYR1.226
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 6mm² - - - M6 - Copper Tin
RS Stock No. 534-452
BrandRS PRO
MYR1.057
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. 534-193
BrandRS PRO
MYR0.787
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
MYR11.827
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 70mm² - - - M12 - Copper Tin
RS Stock No. 241-4669
BrandRS PRO
MYR19.118
Each (In a Pack of 10)
units
- - Uninsulated - 12.7mm - 95mm² - - - M12 - Copper Tin