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. 790-6895
Mfr. Part No.19324-0002
BrandMolex
TWD10.60
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 3.29mm 6.45mm 1mm² 0.5mm² - - M3 - Copper Alloy Tin
RS Stock No. 190-3204
Mfr. Part No.19324-0002
BrandMolex
TWD6,590.00
1 Pack of 1000
Pack(s)
Avikrimp - Insulated Polyamide 3.29mm 6.45mm 1mm² 0.5mm² - - M3 - Copper Alloy Tin
RS Stock No. 822-1482
Mfr. Part No.19221-0244
BrandMolex
TWD102.00
Each
units
- 0244 Uninsulated - 10.16mm 20.93mm - - 2/0AWG 2/0AWG M9 (3/8) - Copper Tin
New
RS Stock No. 213-5454
Mfr. Part No.190730038
BrandMolex
TWD6.40
Each (In a Bag of 1000)
units
19073 19073 Insulated Nylon 3.71mm 6.5mm - - - - 5-6 (M3-3.5) - - -
RS Stock No. 790-6905
Mfr. Part No.19324-0003
BrandMolex
TWD10.80
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 3.79mm 6.45mm 1mm² 0.5mm² - - M3 to M3.5 (#5 to #6) - Copper Alloy Tin
New
RS Stock No. 213-5448
Mfr. Part No.190700073
BrandMolex
TWD6.20
Each (In a Pack of 50)
units
19070 19070 Insulated PVC 5.03mm 12.11mm - - - - 10 (M5) Natural - -
RS Stock No. 822-1485
Mfr. Part No.19221-0241
BrandMolex
TWD61.00
Each
units
- 0241 Uninsulated - 10.16mm 18.49mm 50mm² 50mm² 1/0AWG 1/0AWG M9 (3/8) - Copper Tin
RS Stock No. 167-6417
Mfr. Part No.19324-0011
BrandMolex
TWD10,400.00
1 Bag of 1000
Bag(s)
Avikrimp - Insulated Polyamide 8.51mm 13.56mm 2.5mm² 1mm² - - M8 (5/16) - Copper Alloy Tin
New
RS Stock No. 213-5429
Mfr. Part No.190580016
BrandMolex
TWD17.80
Each (In a Pack of 10)
units
19058 19058 Insulated Nylon 13.08mm 19.05mm - - - - 1/2 (M12) Red - -
New
RS Stock No. 213-5422
Mfr. Part No.190570060
BrandMolex
TWD8.50
Each (In a Pack of 20)
units
19057 19057 Insulated Nylon 6.73mm 11.86mm - - - - M6 (1/4) Blue - -
RS Stock No. 167-6406
Mfr. Part No.19324-0016
BrandMolex
TWD10.20
Each (In a Bag of 500)
units
Avikrimp - Insulated Polyamide 10.63mm 14.94mm 6mm² 2.5mm² - - M10 - Copper Alloy Tin
RS Stock No. 167-6418
Mfr. Part No.19324-0009
BrandMolex
TWD8,920.00
1 Bag of 1000
Bag(s)
Avikrimp - Insulated Polyamide 5.39mm 8.69mm 2.5mm² 1mm² - - M5 - Copper Alloy Tin
New
RS Stock No. 213-5408
Mfr. Part No.190540113
BrandMolex
TWD4.20
Each (In a Box of 1000)
units
19054 19054 Insulated PVC 6.73mm 13.72mm - - - - 10 (M5) Blue - -
New
RS Stock No. 213-5431
Mfr. Part No.190690037
BrandMolex
TWD2.00
Each (In a Bag of 1000)
units
19069 19069 Uninsulated - 5.03mm 8.18mm - - - - 10(M5) - - -
RS Stock No. 790-6918
Mfr. Part No.19324-0008
BrandMolex
TWD11.50
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 4.39mm 7.92mm 2.5mm² 1mm² - - M4 (#8) - Copper Alloy Tin
RS Stock No. 790-6955
Mfr. Part No.19323-0002
BrandMolex
TWD9.60
Each (In a Pack of 50)
units
VersaKrimp - Uninsulated - 3.29mm 6.45mm 1mm² 0.5mm² - - M3 (#5) - Copper Alloy Tin
RS Stock No. 822-1494
Mfr. Part No.19221-0418
BrandMolex
TWD52.00
Each
units
- 0418 Uninsulated - 7.06mm 15.88mm 35mm² 35mm² 2AWG 2AWG M6 (1/4) - Copper Tin
RS Stock No. 790-6924
Mfr. Part No.19324-0011
BrandMolex
TWD11.20
Each (In a Pack of 50)
units
Avikrimp - Insulated Polyamide 8.51mm 13.56mm 2.5mm² 1mm² - - M8 (5/16) - Copper Alloy Tin
RS Stock No. 161-9379
Mfr. Part No.19324-0004
BrandMolex
TWD6,590.00
1 Bag of 1000
Bag(s)
Avikrimp - Insulated Polyamide 4.39mm 7.92mm 1mm² 0.5mm² - - M4 (#8) - Copper Alloy Tin
New
RS Stock No. 213-5487
Mfr. Part No.191930157
BrandMolex
TWD11.90
Each (In a Pack of 20)
units
19193 19193 Uninsulated - - 12.26mm - - - - 5/16 (M8) - - -