Ring Terminals

A crimp 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.
Why do you need it / applications?
Electrical panels
Terminal blocks
Wiring harnesses
Types
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 mm² -
• Yellow 2.5 mm² to 6 mm²
• Blue 1.5 mm² to 2.5 mm²
Other colours by different manufactures are now 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. 149-704
BrandRS PRO
SGD93.06
1 Reel of 800
Reel(s)
3110 - Insulated Vinyl 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M4 (#8) Red Copper Tin
RS Stock No. 534-216
BrandRS PRO
SGD0.10
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 149-675
BrandRS PRO
SGD85.83
1 Reel of 800
Reel(s)
3150 - Insulated Vinyl 5.3mm 9.5mm 1.5mm² 0.5mm² 16AWG 22AWG M5 (#10) Blue Copper Tin
RS Stock No. 534-575
BrandRS PRO
SGD0.162
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. 613-9413
BrandRS PRO
SGD0.264
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 531-087
BrandRS PRO
SGD0.476
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 25mm² - - - M10 - Copper Tin
RS Stock No. 534-238
BrandRS PRO
SGD0.086
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. 208-2565
BrandRS PRO
SGD0.09
Each (In a Pack of 100)
units
- - Uninsulated - 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M4 - Copper Tin
RS Stock No. 149-265
BrandRS PRO
SGD29.45
1 Reel of 800
Reel(s)
3110 - Insulated Vinyl 5.3mm 10mm 1.5mm² 0.5mm² 16AWG 22AWG M5 (#10) Red Copper Tin
RS Stock No. 534-200
BrandRS PRO
SGD0.105
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. 534-581
BrandRS PRO
SGD0.135
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. 373-409
Mfr. Part No.160032
SGD1.608
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. 161-6224
Mfr. Part No.160032
SGD1.306
Each (In a Box of 100)
units
SOLISTRAND - Uninsulated - 10.5mm 15.9mm 16.8mm² 10.5mm² 6AWG 6AWG M10 - Copper Tin
RS Stock No. 531-021
BrandRS PRO
SGD0.419
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 10mm² - - - M6 - Copper Tin
RS Stock No. 531-071
BrandRS PRO
SGD1.09
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 25mm² - - - M8 - Copper Tin
RS Stock No. 531-037
BrandRS PRO
SGD0.514
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm - 10mm² - - - M8 - Copper Tin
RS Stock No. 531-908
BrandRS PRO
SGD2.266
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 50mm² - - - M12 - Copper Tin
RS Stock No. 534-222
BrandRS PRO
SGD0.103
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. 613-9249
BrandRS PRO
SGD0.141
Each (In a Pack of 100)
units
- - Insulated Vinyl 4.3mm 6.6mm 1.5mm² 0.5mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 149-681
BrandRS PRO
SGD116.52
1 Reel of 800
Reel(s)
3150 - Insulated Vinyl 6.4mm 11.6mm 1.5mm² 0.5mm² 16AWG 22AWG M6 (1/4) Blue Copper Tin