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 Minimum Wire Size mm² Outer Ring Diameter Maximum Wire Size mm² Maximum Wire Size AWG Minimum Wire Size AWG Stud Size Colour Contact Material Contact Plating
RS Stock No. 534-216A
BrandRS PRO
kr 393,29
1 Pack of 1000
Pack(s)
- - Insulated PVC 4.16mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 534-216
BrandRS PRO
kr 0,643
Each (In a Pack of 100)
Units
- - Insulated PVC 4.16mm 0.5mm² 6mm 1.5mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 531-015
BrandRS PRO
kr 2,971
Each (In a Pack of 25)
Units
- - Uninsulated - 5.3mm - - 10mm² - - M5 - Copper Tin
RS Stock No. 241-4631
BrandRS PRO
kr 8,265
Each (In a Pack of 10)
Units
- - Uninsulated - 8mm - - 35mm² - - M8 - Copper Tin
RS Stock No. 534-430
BrandRS PRO
kr 1,82
Each (In a Pack of 100)
Units
- - Insulated PVC 6.35mm 2.5mm² 11mm 6mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 534-200A
BrandRS PRO
kr 382,15
1 Pack of 1000
Pack(s)
- - Insulated PVC 5.3mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M5 Red Copper Tin
RS Stock No. 534-200
BrandRS PRO
kr 0,683
Each (In a Pack of 100)
Units
- - Insulated PVC 5.3mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M5 Red Copper Tin
RS Stock No. 534-575
BrandRS PRO
kr 1,227
Each (In a Pack of 100)
Units
- - Insulated PVC 5.3mm 1.5mm² 9.5mm 2.5mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 534-575A
BrandRS PRO
kr 397,44
1 Pack of 1000
Pack(s)
- - Insulated PVC 5.3mm 1.5mm² 9.5mm 2.5mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 433-034A
BrandRS PRO
kr 430,70
1 Pack of 1000
Pack(s)
- - Uninsulated - 3.2mm 0.5mm² 5.5mm 1.5mm² 16AWG 22AWG M3 - Copper Tin
RS Stock No. 433-034
BrandRS PRO
kr 0,896
Each (In a Pack of 100)
Units
- - Uninsulated - 3.2mm 0.5mm² 5.5mm 1.5mm² 16AWG 22AWG M3 - Copper Tin
RS Stock No. 534-238
BrandRS PRO
kr 0,558
Each (In a Pack of 100)
Units
- - Insulated PVC 3.2mm 0.5mm² 5.5mm 1.5mm² 16AWG 22AWG M3 Red Copper Tin
RS Stock No. 208-2565
BrandRS PRO
kr 0,511
Each (In a Pack of 100)
Units
- - Uninsulated - 4.3mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M4 - Copper Tin
RS Stock No. 534-238A
BrandRS PRO
kr 382,15
1 Pack of 1000
Pack(s)
- - Insulated PVC 3.2mm 0.5mm² 5.5mm 1.5mm² 16AWG 22AWG M3 Red Copper Tin
RS Stock No. 534-468
BrandRS PRO
kr 1,032
Each (In a Pack of 100)
Units
- - Insulated PVC 3.7mm 2.5mm² 9.1mm 6mm² 10AWG 12AWG M3.5 Yellow Copper Tin
RS Stock No. 841-7623
BrandRS PRO
kr 2,849
Each (In a Pack of 50)
Units
- - Uninsulated - 8.3mm 25mm² 13mm 25mm² - - 8mm - Copper Tin
RS Stock No. 534-193
BrandRS PRO
kr 1,268
Each (In a Pack of 100)
Units
- - Insulated PVC 6.35mm 0.5mm² 11mm 1.5mm² 16AWG 22AWG M6 Red Copper Tin
RS Stock No. 267-3773
BrandRS PRO
kr 1,722
Each (In a Pack of 100)
Units
- - Insulated Nylon 4.3mm 1.5mm² 6.6mm 2.5mm² 14AWG 16AWG M4 (#8) Blue Copper -
RS Stock No. 208-2622
BrandRS PRO
kr 0,591
Each (In a Pack of 100)
Units
- - Uninsulated - 4.3mm 1.5mm² 8mm 2.5mm² 14AWG 16AWG M4 - Copper Tin
RS Stock No. 531-059
BrandRS PRO
kr 6,042
Each (In a Pack of 10)
Units
- - Uninsulated - 8.4mm - - 16mm² - - M8 - Copper Tin
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