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 Shrouded/Unshrouded Stud Size Colour Contact Material
RS Stock No. 534-200
BrandRS PRO
$0.114
Each (In a Pack of 100)
units
- - Insulated PVC 5.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG - M5 Red Copper
RS Stock No. 534-216
BrandRS PRO
$0.133
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 6mm 1.5mm² 0.5mm² 16AWG 22AWG - M4 Red Copper
RS Stock No. 534-575
BrandRS PRO
$0.176
Each (In a Pack of 100)
units
- - Insulated PVC 5.3mm 9.5mm 2.5mm² 1.5mm² 14AWG 16AWG - M5 Blue Copper
RS Stock No. 531-021
BrandRS PRO
$0.479
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 10mm² - - - - M6 - Copper
RS Stock No. 267-3593
BrandRS PRO
$0.218
Each (In a Pack of 100)
units
- - Insulated Nylon 6.4mm 11.6mm 1.5mm² 0.5mm² 16AWG 22AWG - M6 (1/4) Red Copper
RS Stock No. 149-530
BrandRS PRO
$40.46
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 5.3mm 9.5mm 6mm² 4mm² 10AWG 12AWG - M5 (#10) Yellow Copper
RS Stock No. 534-446
BrandRS PRO
$0.265
Each (In a Pack of 100)
units
- - Insulated PVC 5.3mm 9.5mm 6mm² 2.5mm² 10AWG 12AWG - M5 Yellow Copper
RS Stock No. 841-7605
BrandRS PRO
$0.313
Each (In a Pack of 100)
units
- - Uninsulated - 6.5mm 11mm 10mm² 10mm² - - - 6mm - Copper
RS Stock No. 531-059
BrandRS PRO
$0.824
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 16mm² - - - - M8 - Copper
RS Stock No. 534-569
BrandRS PRO
$0.268
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 10.5mm 2.5mm² 1.5mm² 14AWG 16AWG - M6 Blue Copper
RS Stock No. 531-087
BrandRS PRO
$0.511
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 25mm² - - - - M10 - Copper
RS Stock No. 534-581
BrandRS PRO
$0.146
Each (In a Pack of 100)
units
- - Insulated PVC 4.16mm 8mm 2.5mm² 1.5mm² 14AWG 16AWG - M4 Blue Copper
RS Stock No. 267-3650
BrandRS PRO
$0.277
Each (In a Pack of 100)
units
- - Insulated Nylon 3.2mm 5.5mm 1.5mm² 0.5mm² 16AWG 22AWG - M3 (#4) Red Copper
RS Stock No. 208-2509
BrandRS PRO
$0.337
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 12mm 2.5mm² 1.5mm² 14AWG 16AWG - M8 Blue Copper
RS Stock No. 841-7608
BrandRS PRO
$0.194
Each (In a Pack of 100)
units
- - Uninsulated - 8.3mm 12.5mm 6mm² 6mm² - - - 8mm - Copper
RS Stock No. 119-160
BrandRS PRO
$0.374
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 6mm² - - - - M6 - Copper
RS Stock No. 531-043
BrandRS PRO
$0.856
Each (In a Pack of 10)
units
- - Uninsulated - 6.4mm - 16mm² - - - - M6 - Copper
RS Stock No. 149-253
BrandRS PRO
$45.42
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG - M6 (1/4) Yellow Copper
RS Stock No. 534-193
BrandRS PRO
$0.228
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 1.5mm² 0.5mm² 16AWG 22AWG - M6 Red Copper
RS Stock No. 534-430
BrandRS PRO
$0.348
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 6mm² 2.5mm² 10AWG 12AWG - M6 Yellow Copper
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