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. 531-037
BrandRS PRO
$0.582
Each (In a Pack of 25)
units
- - Uninsulated - 8.4mm - 10mm² - - - - M8 - Copper
RS Stock No. 841-7598
BrandRS PRO
$0.247
Each (In a Pack of 100)
units
- - Uninsulated - 6.5mm 11mm 6mm² 6mm² - - - 6mm - Copper
RS Stock No. 208-2593
BrandRS PRO
$0.128
Each (In a Pack of 100)
units
- - Uninsulated - 6.4mm 11.6mm 2.5mm² 1.5mm² 14AWG 16AWG - M6 - Copper
RS Stock No. 842-040
Mfr. Part No.130102
$0.217
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG - M5 Blue Copper
RS Stock No. 136-1646
Mfr. Part No.130102
$161.70
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG - M5 Blue Copper
RS Stock No. 241-4631
BrandRS PRO
$2.035
Each (In a Pack of 10)
units
- - Uninsulated - 8mm - 35mm² - - - - M8 - Copper
RS Stock No. 534-424
BrandRS PRO
$0.428
Each (In a Pack of 100)
units
- - Insulated PVC 8.4mm 14mm 6mm² 2.5mm² 10AWG 12AWG - M8 Yellow Copper
RS Stock No. 136-1644
Mfr. Part No.34149
$229.95
1 Box of 1000
Box(es)
PLASTI-GRIP - Insulated Vinyl 5mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG - M5 Red Copper
RS Stock No. 457-4000
Mfr. Part No.130094
$0.488
Each (In a Pack of 100)
units
PIDG - Insulated Nylon 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG - M5 Blue Copper
RS Stock No. 841-952
Mfr. Part No.34149
$0.462
Each (In a Pack of 100)
units
PLASTI-GRIP - Insulated Vinyl 5mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG - M5 Red Copper
RS Stock No. 161-6224
Mfr. Part No.160032
$1.315
Each (In a Box of 100)
units
SOLISTRAND - Uninsulated - 10.5mm 15.9mm 16.8mm² 10.5mm² 6AWG 6AWG - M10 - Copper
RS Stock No. 534-597
BrandRS PRO
$0.142
Each (In a Pack of 100)
units
- - Insulated PVC 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG - M3.5 Blue Copper
RS Stock No. 136-1790
Mfr. Part No.130094
$345.45
1 Box of 1000
Box(es)
PIDG - Insulated Nylon 5mm 8.7mm 2.6mm² 1mm² 14AWG 16AWG - M5 Blue Copper
RS Stock No. 613-9508
BrandRS PRO
$0.107
Each (In a Pack of 100)
units
- - Insulated Vinyl 4.3mm 8.5mm 2.5mm² 1.5mm² 14AWG 16AWG - M4 Blue Copper
RS Stock No. 373-409
Mfr. Part No.160032
$1.836
Each (In a Pack of 25)
units
SOLISTRAND - Uninsulated - 10.5mm 15.9mm 16.8mm² 10.5mm² 6AWG 6AWG - M10 - Copper
RS Stock No. 267-6441
BrandRS PRO
$0.387
Each (In a Pack of 100)
units
- - Insulated Nylon 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG - M6 (1/4) Yellow Copper
RS Stock No. 457-5126
Mfr. Part No.130008
$0.504
Each (In a Pack of 100)
units
PIDG - Insulated - 5mm 7.92mm 1.6mm² 0.25mm² 16AWG 22AWG - M5 Red Copper
RS Stock No. 613-9413
BrandRS PRO
$0.342
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG - M6 Yellow Copper
RS Stock No. 164-8614
Mfr. Part No.320569
$0.44
Each (In a Box of 500)
units
PIDG - Insulated Nylon 6.35mm 13.49mm 6.6mm² 2.6mm² 10AWG 12AWG - M6 Yellow Copper
RS Stock No. 136-1793
Mfr. Part No.130008
$317.21
1 Box of 1000
Box(es)
PIDG - Insulated - 5mm 7.92mm 1.6mm² 0.25mm² 16AWG 22AWG - M5 Red Copper