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 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. 180-1388
Mfr. Part No.BU-L8-375TIN
$1.11
Each
units
- - Uninsulated - 10.4mm - - - 8AWG - - 9.525mm - Copper
RS Stock No. 190-3751
Mfr. Part No.321013
$612.38
1 Pack of 1000
Pack(s)
PIDG - Insulated Nylon 1.7mm 3.56mm 0.4mm² 0.1mm² 22AWG 26AWG - 1.68mm Yellow Copper
RS Stock No. 165-0643
Mfr. Part No.52291
$1.27
Each (In a Box of 100)
units
PLASTI-GRIP - Insulated PVC - - 10.5mm² 6.6mm² 8AWG 8AWG - M8 Red Copper
RS Stock No. 718-7472
Mfr. Part No.52077
$2.14
Each (In a Pack of 5)
units
PIDG - Insulated Nylon - - 6.6mm² 2.6mm² 10AWG 12AWG - M12 Yellow Copper
RS Stock No. 669-1974
Mfr. Part No.52042-3
$1.60
Each (In a Pack of 50)
units
PLASTI-GRIP - Insulated Vinyl - - 16.77mm² 10.5mm² 6AWG 6AWG - M6 Blue Copper
RS Stock No. 164-7772
Mfr. Part No.324158
$469.00
1 Box of 1000
Box(es)
PIDG - Insulated Nylon - - 1.3mm² 0.3mm² 16AWG 22AWG - M2 Red Copper
RS Stock No. 163-0410
Mfr. Part No.SRB-1.0T-M5
BrandJST
$0.174
Each (In a Bag of 50)
units
SRB - Uninsulated - 5.3mm 9.5mm 1mm² 0.5mm² 18AWG 20AWG - M5 - Brass
RS Stock No. 710-0491
Mfr. Part No.2-34107-2
$0.423
Each (In a Pack of 10)
units
SOLISTRAND - Uninsulated - 3.68mm 7.14mm 1.65mm² 0.26mm² 16AWG 22AWG - M3.5 (#6) - Copper
RS Stock No. 164-0257
Mfr. Part No.2-320561-3
$570.00
1 Box of 1000
Box(es)
PIDG - Insulated Nylon - - 2.6mm² 1mm² 14AWG 16AWG - M3.5 Blue Copper
RS Stock No. 167-6404
Mfr. Part No.19324-0012
BrandMolex
$0.741
Each (In a Bag of 500)
units
Avikrimp - Insulated Polyamide 4.39mm 7.16mm 6mm² 2.5mm² - - - M4 (#8) - Copper Alloy
RS Stock No. 795-1731
Mfr. Part No.52267
$4.18
Each
units
PLASTI-GRIP - Insulated Vinyl 6.73mm 17.15mm 42.4mm² 26.6mm² 2AWG 2AWG - M6 (1/4) Red Copper
RS Stock No. 161-8625
Mfr. Part No.325805
$17.40
Each (In a Box of 25)
units
AMPOWER - Uninsulated - 13.08mm 35.56mm 152mm² 152mm² - - - M12 (1/2) - Copper
RS Stock No. 164-8636
Mfr. Part No.35346
$1.372
Each (In a Box of 500)
units
PIDG - Insulated Vinyl - - 6.6mm² 2.6mm² 10AWG 12AWG - M8 Yellow Copper
RS Stock No. 825-2303
Mfr. Part No.31091
$0.20
Each (In a Pack of 100)
units
Budget - Uninsulated - 3.68mm 5.54mm 1.65mm² 0.26mm² 16AWG 22AWG - M3.5 (#6) - Copper
RS Stock No. 178-8675
BrandRS PRO
$0.088
Each (In a Bag of 100)
units
- - Insulated Vinyl 4.3mm 8mm 1.5mm² 0.5mm² 16AWG 22AWG - 4.3mm Red Copper
RS Stock No. 178-7268
BrandRS PRO
$0.235
Each (In a Bag of 100)
units
- - Insulated Vinyl 6.5mm 11mm 6mm² 2.5mm² 10AWG 12AWG - 6.5mm Yellow Copper
RS Stock No. 490-3852
Mfr. Part No.HC TMEV2-4-BLUE
BrandNichifu
$0.746
Each (In a Pack of 10)
units
TMEV - Insulated Vinyl 0.09in 0.177in 2.6mm² 1mm² 14AWG 16AWG - #8 Blue Copper
RS Stock No. 164-4073
Mfr. Part No.2-33460-2
$2,445.00
1 Reel of 1500
Reel(s)
SOLISTRAND - Uninsulated - 5mm - 10.5mm² 6.6mm² 8AWG 8AWG - M5 - Copper
RS Stock No. 170-9392
Mfr. Part No.34104
$201.00
1 Box of 1000
Box(es)
SOLISTRAND - Uninsulated - 3.2mm - 1.65mm² 0.26mm² 16AWG 22AWG - M2.5 Grey Copper
RS Stock No. 838-8266
Mfr. Part No.1.25-B3.5A
BrandJST
$0.075
Each (In a Pack of 100)
units
A - Uninsulated - 3.7mm 5.8mm 1.65mm² 0.25mm² 16AWG 22AWG - 3.5mm - -
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