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. 534-216
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. 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. 531-015
BrandRS PRO
kr 3,305
Each (In a Pack of 25)
Units
- - Uninsulated - 5.3mm - - 10mm² - - M5 - Copper Tin
RS Stock No. 163-8702
Mfr. Part No.33456
kr 1,908
Each (In a Box of 500)
Units
SOLISTRAND - Uninsulated - 3.68mm 2.6mm² 9.53mm 6.6mm² 10AWG 12AWG M3.5 - Copper Tin
RS Stock No. 224-9667
Mfr. Part No.33456
kr 2,708
Each (In a Pack of 100)
Units
SOLISTRAND - Uninsulated - 3.68mm 2.6mm² 9.53mm 6.6mm² 10AWG 12AWG M3.5 - Copper Tin
RS Stock No. 241-4631
BrandRS PRO
kr 9,708
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. 534-200
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. 534-200A
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. 166-7470
Mfr. Part No.FVWS1.25-M4(LF)
BrandJST
kr 572,16
1 Box of 1000
Box(es)
FV - Insulated Vinyl 4.3mm 0.25mm² 6.6mm 1.65mm² 16AWG 22AWG M4 (#8) Red - -
RS Stock No. 688-1218
Mfr. Part No.FVWS1.25-M4(LF)
BrandJST
kr 1,009
Each (In a Pack of 100)
Units
FV - Insulated Vinyl 4.3mm 0.25mm² 6.6mm 1.65mm² 16AWG 22AWG M4 (#8) Red - -
RS Stock No. 680-5624
Mfr. Part No.320764
kr 27,763
Each (In a Pack of 50)
Units
SOLISTRAND - Insulated - - 2.6mm² - 6.6mm² 10AWG 12AWG M16 - Copper Tin
RS Stock No. 534-575A
BrandRS PRO
kr 442,03
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. 163-9985
Mfr. Part No.320764
kr 30,054
Each (In a Box of 500)
Units
SOLISTRAND - Insulated - - 2.6mm² - 6.6mm² 10AWG 12AWG M16 - Copper Tin
RS Stock No. 534-575
BrandRS PRO
kr 1,365
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. 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. 164-1627
Mfr. Part No.321885
kr 8 026,35
1 Box of 1000
Box(es)
STRATO-THERM - Uninsulated - 3.35mm 0.26mm² 5.54mm 1.65mm² 16AWG 22AWG M3 - Nickel -
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. 397-5654
Mfr. Part No.321885
kr 11,861
Each (In a Pack of 10)
Units
STRATO-THERM - Uninsulated - 3.35mm 0.26mm² 5.54mm 1.65mm² 16AWG 22AWG M3 - Nickel -
RS Stock No. 433-034
BrandRS PRO
kr 0,997
Each (In a Pack of 100)
Units
- - Uninsulated - 3.2mm 0.5mm² 5.5mm 1.5mm² 16AWG 22AWG M3 - Copper Tin