Crimp 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. 534-216
BrandRS PRO
SGD0.068
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. 149-704
BrandRS PRO
SGD86.22
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. 534-575
BrandRS PRO
SGD0.106
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. 149-675
BrandRS PRO
SGD70.77
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. 613-9413
BrandRS PRO
SGD0.239
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
SGD0.366
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 25mm² - - - M10 - Copper Tin
RS Stock No. 534-238
BrandRS PRO
SGD0.068
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
SGD0.053
Each (In a Pack of 100)
units
- - Uninsulated - 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M4 - Copper Tin
RS Stock No. 534-581
BrandRS PRO
SGD0.139
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. 149-265
BrandRS PRO
SGD16.67
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
SGD0.072
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. 149-697
BrandRS PRO
SGD78.08
1 Reel of 800
Reel(s)
3150 - Insulated Vinyl 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG M4 (#8) Blue Copper Tin
RS Stock No. 531-071
BrandRS PRO
SGD0.746
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 25mm² - - - M8 - Copper Tin
RS Stock No. 531-021
BrandRS PRO
SGD0.303
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 10mm² - - - M6 - Copper Tin
RS Stock No. 531-037
BrandRS PRO
SGD0.364
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm - 10mm² - - - M8 - Copper Tin
RS Stock No. 531-908
BrandRS PRO
SGD1.583
Each (In a Pack of 10)
units
- - Uninsulated - 12.8mm - 50mm² - - - M12 - Copper Tin
RS Stock No. 613-9249
BrandRS PRO
SGD0.116
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. 534-222
BrandRS PRO
SGD0.057
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. 534-569
BrandRS PRO
SGD0.199
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 10.5mm 2.5mm² 1.5mm² 14AWG 16AWG M6 Blue Copper Tin
RS Stock No. 149-681
BrandRS PRO
SGD80.42
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
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