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. 842-141
Mfr. Part No.160292
MYR1.754
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated PVC 5mm 9.5mm 6.6mm² 2.6mm² 10AWG 12AWG M5 Yellow Copper Tin
RS Stock No. 135-4468
Mfr. Part No.160013
MYR3.762
Each (In a Bag of 500)
units
SOLISTRAND - Uninsulated - 5mm 11.9mm 10.5mm² 6.6mm² 8AWG 8AWG M5 - Copper Tin
RS Stock No. 136-1648
Mfr. Part No.160292
MYR1.67
Each (In a Box of 500)
units
PLASTI-GRIP - Insulated PVC 5mm 9.5mm 6.6mm² 2.6mm² 10AWG 12AWG M5 Yellow Copper Tin
RS Stock No. 373-314
Mfr. Part No.160013
MYR4.531
Each (In a Pack of 50)
units
SOLISTRAND - Uninsulated - 5mm 11.9mm 10.5mm² 6.6mm² 8AWG 8AWG M5 - Copper Tin
RS Stock No. 841-974
Mfr. Part No.34142
MYR0.823
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 3.68mm 5.54mm 1.65mm² 0.26mm² 16AWG 22AWG M3.5 Red Copper Tin
RS Stock No. 239-4111
BrandRS PRO
MYR0.941
Each (In a Pack of 100)
units
- - Insulated Nylon 3.2mm 5mm 0.5mm² 0.2mm² 22AWG 26AWG M3 Yellow Copper Tin
RS Stock No. 170-9399
Mfr. Part No.34160
MYR459.90
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 4.34mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 136-1647
Mfr. Part No.34855
MYR1.482
Each (In a Box of 500)
units
PLASTI-GRIP - Insulated Vinyl 6.73mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 398-1889
Mfr. Part No.1R6
BrandKlauke
MYR2.124
Each (In a Bag of 10)
units
- - Uninsulated - - - 6mm² 6mm² - - M6 - Copper Tin
RS Stock No. 842-135
Mfr. Part No.34855
MYR1.49
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 6.73mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 613-9659
BrandRS PRO
MYR1.068
Each (In a Pack of 100)
units
- - Insulated Vinyl 5.3mm 9.5mm 6mm² 4mm² 10AWG 12AWG M5 Yellow Copper Tin
RS Stock No. 842-056
Mfr. Part No.34160
MYR0.593
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 4.34mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG M4 Blue Copper Tin
RS Stock No. 224-9926
Mfr. Part No.322798
MYR2.037
Each (In a Pack of 10)
units
STRATO-THERM - Uninsulated - 4.34mm 7.14mm 1.65mm² 0.26mm² 16AWG 22AWG M4 - Copper Nickel
RS Stock No. 718-7696
Mfr. Part No.709819-5
MYR47.07
Each
units
XCT - Uninsulated - 12.8mm - 95mm² 95mm² 4/0AWG 3/0AWG 12mm - Copper Tin
RS Stock No. 534-222
BrandRS PRO
MYR0.355
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. 613-9413
BrandRS PRO
MYR0.942
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 163-8695
Mfr. Part No.322798
MYR1,454.19
1 Box of 1000
Box(es)
STRATO-THERM - Uninsulated - 4.34mm 7.14mm 1.65mm² 0.26mm² 16AWG 22AWG M4 - Copper Nickel
RS Stock No. 190-3725
Mfr. Part No.130207
MYR9,870.00
1 Box of 5000
Box(es)
PIDG - Insulated - 10.3mm 13.5mm 6.6mm² 2.6mm² 10AWG 12AWG M10 Yellow Copper Tin
RS Stock No. 613-9249
BrandRS PRO
MYR0.503
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. 613-9429
BrandRS PRO
MYR2.253
Each (In a Pack of 100)
units
- - Insulated Vinyl 13mm 19.2mm 6mm² 4mm² 10AWG 12AWG M12 Yellow Copper Tin