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
HK$0.56
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. 718-7555
Mfr. Part No.35135
HK$4.52
Each (In a Pack of 10)
units
SOLISTRAND - Uninsulated - - - 6.6mm² 2.6mm² 10AWG 12AWG M12 - Copper Tin
RS Stock No. 165-0911
Mfr. Part No.35135
HK$3.65
Each (In a Box of 500)
units
SOLISTRAND - Uninsulated - - - 6.6mm² 2.6mm² 10AWG 12AWG M12 - Copper Tin
RS Stock No. 534-200
BrandRS PRO
HK$0.59
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. 267-6441
BrandRS PRO
HK$1.736
Each (In a Pack of 100)
units
- - Insulated Nylon 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 (1/4) Yellow Copper -
RS Stock No. 531-908
BrandRS PRO
HK$13.959
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 50mm² - - - M12 - Copper Tin
RS Stock No. 531-021
BrandRS PRO
HK$2.455
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 10mm² - - - M6 - Copper Tin
RS Stock No. 531-920
BrandRS PRO
HK$17.092
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 70mm² - - - M12 - Copper Tin
RS Stock No. 531-037
BrandRS PRO
HK$2.874
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm - 10mm² - - - M8 - Copper Tin
RS Stock No. 842-040
Mfr. Part No.130102
HK$1.14
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 534-222
BrandRS PRO
HK$0.56
Each (In a Pack of 100)
units
- - Insulated PVC 3.7mm 6.6mm 1.5mm² 0.5mm² 16AWG 22AWG M3.5 Red Copper Tin
RS Stock No. 136-1646
Mfr. Part No.130102
HK$881.60
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 457-4000
Mfr. Part No.130094
HK$2.181
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 136-1790
Mfr. Part No.130094
HK$1,565.00
1 Box of 1000
Box(es)
PIDG - Insulated Nylon 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 267-3880
BrandRS PRO
HK$2.058
Each (In a Pack of 100)
units
- - Insulated Nylon 5.3mm 9.5mm 6mm² 4mm² 10AWG 12AWG M5 (#10) Yellow Copper -
RS Stock No. 457-5104
Mfr. Part No.320551
HK$1.51
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 534-430
BrandRS PRO
HK$1.974
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 6mm² 2.5mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 170-9431
Mfr. Part No.320551
HK$1,400.30
1 Box of 1000
Box(es)
PIDG - Insulated Nylon 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 373-409
Mfr. Part No.160032
HK$6.776
Each (In a Pack of 25)
units
SOLISTRAND - Uninsulated - 10.5mm 15.9mm 16.8mm² 10.5mm² 6AWG 6AWG M10 - Copper Tin
RS Stock No. 161-6223
Mfr. Part No.33466
HK$3.69
Each (In a Box of 100)
units
SOLISTRAND - Uninsulated - 8.33mm 15.88mm 16.8mm² 10.5mm² 6AWG 6AWG M8 - Copper Tin
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