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
PHP3.301
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. 149-253
BrandRS PRO
PHP1,650.54
1 Reel of 500
Reel(s)
3130 - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 (1/4) Yellow Copper Tin
RS Stock No. 534-430
BrandRS PRO
PHP10.577
Each (In a Pack of 100)
units
- - Insulated PVC 6.35mm 11mm 6mm² 2.5mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 534-575
BrandRS PRO
PHP5.364
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. 534-238
BrandRS PRO
PHP2.838
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. 613-9413
BrandRS PRO
PHP8.751
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 809-2284
BrandRS PRO
PHP15.202
Each (In a Pack of 25)
units
- - Uninsulated - 5.3mm 11mm 16mm² 16mm² 8AWG 6AWG #10 - Copper -
RS Stock No. 809-2296
BrandRS PRO
PHP18.079
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm 14mm 16mm² 16mm² 6AWG 6AWG 8.4mm - Copper -
RS Stock No. 267-3773
BrandRS PRO
PHP5.605
Each (In a Pack of 100)
units
- - Insulated Nylon 4.3mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M4 (#8) Blue Copper -
RS Stock No. 531-891
BrandRS PRO
PHP66.656
Each (In a Pack of 10)
units
- - Uninsulated - 10.4mm - 50mm² - - - M10 - Copper Tin
RS Stock No. 534-424
BrandRS PRO
PHP9.724
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 14mm 6mm² 2.5mm² 10AWG 12AWG M8 Yellow Copper Tin
RS Stock No. 613-9508
BrandRS PRO
PHP2.082
Each (In a Pack of 100)
units
- - Insulated Vinyl 4.3mm 8.5mm 2.5mm² 1.5mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 534-581
BrandRS PRO
PHP5.025
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. 267-3745
BrandRS PRO
PHP6.267
Each (In a Pack of 100)
units
- - Insulated Nylon 5.3mm 9.5mm 2.5mm² 1.5mm² 14AWG 16AWG M5 (#10) Blue Copper -
RS Stock No. 534-569
BrandRS PRO
PHP5.607
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. 534-200
BrandRS PRO
PHP3.939
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. 613-9211
BrandRS PRO
PHP1.601
Each (In a Pack of 100)
units
- - Insulated Vinyl 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3.5 Blue Copper Tin
RS Stock No. 809-2331
BrandRS PRO
PHP68.916
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm 18mm 50mm² 50mm² 1/0AWG 1/0AWG 8.4mm - Copper -
RS Stock No. 613-9299
BrandRS PRO
PHP9.502
Each (In a Pack of 100)
units
- - Insulated Vinyl 8.4mm 11.6mm 1.5mm² 0.5mm² 16AWG 22AWG M8 Red Copper Tin
RS Stock No. 208-2537
BrandRS PRO
PHP12.013
Each (In a Pack of 100)
units
- - Insulated PVC 10mm 15mm 6mm² 2.5mm² 10AWG 12AWG M10 Yellow Copper Tin
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