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 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. 149-253
BrandRS PRO
€27.57
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 6.4mm 4mm² 12mm 6mm² 10AWG 12AWG M6 (1/4) Yellow Copper Tin
RS Stock No. 534-430
BrandRS PRO
€0.208
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 2.5mm² 11mm 6mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 534-216A
BrandRS PRO
€28.42
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
€0.065
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M4 Red Copper Tin
RS Stock No. 149-704
BrandRS PRO
€60.37
1 Reel of 800
Reel(s)
3110 - Insulated Vinyl 4.3mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M4 (#8) Red Copper Tin
RS Stock No. 534-569A
BrandRS PRO
€56.33
1 Pack of 1000
Pack(s)
- - Insulated PVC 6.35mm 1.5mm² 10.5mm 2.5mm² 14AWG 16AWG M6 Blue Copper Tin
RS Stock No. 534-569
BrandRS PRO
€0.136
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 1.5mm² 10.5mm 2.5mm² 14AWG 16AWG M6 Blue Copper Tin
RS Stock No. 149-681
BrandRS PRO
€78.08
1 Reel of 800
Reel(s)
3150 - Insulated Vinyl 6.4mm 0.5mm² 11.6mm 1.5mm² 16AWG 22AWG M6 (1/4) Blue Copper Tin
RS Stock No. 534-200
BrandRS PRO
€0.068
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
€35.56
1 Pack of 1000
Pack(s)
- - Insulated PVC 5.3mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M5 Red Copper Tin
RS Stock No. 149-265
BrandRS PRO
€19.73
1 Reel of 800
Reel(s)
3110 - Insulated Vinyl 5.3mm 0.5mm² 10mm 1.5mm² 16AWG 22AWG M5 (#10) Red Copper Tin
RS Stock No. 149-338
BrandRS PRO
€40.25
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 8.4mm 4mm² 15mm 6mm² 10AWG 12AWG M8 (5/16) Yellow Copper Tin
RS Stock No. 534-424
BrandRS PRO
€0.191
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 2.5mm² 14mm 6mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 149-546
BrandRS PRO
€17.45
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 4.3mm 4mm² 9.5mm 6mm² 10AWG 12AWG M4 (#8) Yellow Copper Tin
RS Stock No. 534-452
BrandRS PRO
€0.158
Each (In a Pack of 100)
units
- - Insulated PVC 4.3mm 2.5mm² 9.5mm 6mm² 10AWG 12AWG M4 Yellow Copper Tin
RS Stock No. 119-160
BrandRS PRO
€0.20
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - - 6mm² - - M6 - Copper Tin
RS Stock No. 531-021
BrandRS PRO
€0.265
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - - 10mm² - - M6 - Copper Tin
RS Stock No. 534-581A
BrandRS PRO
€23.71
1 Pack of 1000
Pack(s)
- - Insulated PVC 4.16mm 1.5mm² 8mm 2.5mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 149-697
BrandRS PRO
€62.45
1 Reel of 800
Reel(s)
3150 - Insulated Vinyl 4.3mm 0.5mm² 8mm 1.5mm² 16AWG 22AWG M4 (#8) Blue Copper Tin
RS Stock No. 534-581
BrandRS PRO
€0.087
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 1.5mm² 8mm 2.5mm² 14AWG 16AWG M4 Blue Copper Tin
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