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 Stud Size Colour Contact Material Contact Plating
RS Stock No. 166-7458
Mfr. Part No.FVWS1.25-3(LF)
BrandJST
HK$565.70
1 Box of 1000
Box(es)
FV - Insulated Vinyl 3.2mm 5.5mm 1.65mm² 0.25mm² 16AWG 22AWG M3 (#3 to #4) Red - -
RS Stock No. 225-0027
Mfr. Part No.321895
HK$12.87
Each (In a Pack of 10)
units
STRATO-THERM - - - 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 - Nickel -
RS Stock No. 531-059
BrandRS PRO
HK$4.506
Each (In a Pack of 10)
units
- - Uninsulated - 8.4mm - 16mm² - - - M8 - Copper Tin
RS Stock No. 161-1932
Mfr. Part No.130090
HK$4.233
Each (In a Box of 100)
units
PIDG - Insulated Nylon 5mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 167-6416
Mfr. Part No.19324-0008
BrandMolex
HK$1,860.00
1 Bag of 1000
Bag(s)
Avikrimp - Insulated Polyamide 4.39mm 7.92mm 2.5mm² 1mm² - - M4 (#8) - Copper Alloy Tin
RS Stock No. 669-2135
Mfr. Part No.320573
HK$3.842
Each (In a Pack of 100)
units
PIDG - Insulated Nylon - - 1.65mm² 0.26mm² 16AWG 22AWG M10 Red Copper Tin
RS Stock No. 373-156
Mfr. Part No.34108
HK$1.21
Each (In a Pack of 100)
units
SOLISTRAND - Uninsulated - 4.34mm 7.14mm 1.65mm² 0.26mm² 16AWG 22AWG M4 - Copper Tin
RS Stock No. 604-8301
Mfr. Part No.R1.25-5
BrandJST
HK$26.99
1 Bag of 100
Bag(s)
- - Uninsulated - - - 1.65mm² 0.25mm² 16AWG 22AWG 5mm - - -
RS Stock No. 239-4105
BrandRS PRO
HK$1.071
Each (In a Pack of 100)
units
- - Insulated Nylon 2.7mm 5mm 0.5mm² 0.2mm² 22AWG 26AWG M2.5 Yellow Copper Tin
RS Stock No. 164-8476
Mfr. Part No.130090
HK$2,870.00
1 Box of 1000
Box(es)
PIDG - Insulated Nylon 5mm 8.71mm 2.6mm² 1mm² 14AWG 16AWG M5 Blue Copper Tin
RS Stock No. 842-135
Mfr. Part No.34855
HK$2.58
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. 718-7624
Mfr. Part No.626030-2
HK$2.84
Each (In a Pack of 25)
units
- - Uninsulated - - - 1.65mm² 0.5mm² 15AWG 20AWG 6.5mm - Brass Tin
RS Stock No. 688-1173
Mfr. Part No.FVWS1.25-3(LF)
BrandJST
HK$0.664
Each (In a Pack of 100)
units
FV - Insulated Vinyl 3.2mm 5.5mm 1.65mm² 0.25mm² 16AWG 22AWG M3 (#3 → #4) Red - -
RS Stock No. 613-9413
BrandRS PRO
HK$1.521
Each (In a Pack of 100)
units
- - Insulated Vinyl 6.4mm 12mm 6mm² 4mm² 10AWG 12AWG M6 Yellow Copper Tin
RS Stock No. 164-2361
Mfr. Part No.696423-6
HK$3,670.00
1 Box of 1000
Box(es)
PIDG - Insulated PVDF 0.197in 0.312in 2.6mm² 1mm² 14AWG 16AWG #10 Natural Copper Tin
RS Stock No. 190-3650
Mfr. Part No.626030-2
HK$15,300.00
1 Pack of 10000
Pack(s)
- - Uninsulated - - - 1.65mm² 0.5mm² 15AWG 20AWG 6.5mm - Brass Tin
RS Stock No. 163-8691
Mfr. Part No.321895
HK$7,920.00
1 Box of 1000
Box(es)
STRATO-THERM - - - 4.34mm 7.92mm 1.65mm² 0.26mm² 16AWG 22AWG M4 - Nickel -
RS Stock No. 170-9394
Mfr. Part No.33461
HK$2.03
Each (In a Box of 100)
units
SOLISTRAND - Uninsulated - 6.73mm 11.91mm 10.5mm² 6.6mm² 8AWG 8AWG M6 - Copper Tin
RS Stock No. 267-3789
BrandRS PRO
HK$1.201
Each (In a Pack of 100)
units
- - Insulated Nylon 3.7mm 6.6mm 2.5mm² 1.5mm² 14AWG 16AWG M3.5 (#6) Blue Copper -
RS Stock No. 119-160
BrandRS PRO
HK$1.79
Each (In a Pack of 25)
units
- - Uninsulated - 6.4mm - 6mm² - - - M6 - Copper Tin
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