Crimp 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. 179-4621
Mfr. Part No.R6-6VDC-H
BrandABB
$0.522
Each (In a Pack of 25)
units
- - Insulated Vinyl - - 6mm² 4 - - - M6 Yellow Copper
RS Stock No. 179-4622
Mfr. Part No.R6-8VSC-H
BrandABB
$0.392
Each (In a Pack of 25)
units
- - Insulated Vinyl - - 6mm² 4 - - - M8 Yellow Copper
RS Stock No. 179-4256
Mfr. Part No.CZL10-6RA
BrandABB
$0.86
Each
units
CZL - Uninsulated - 6mm 12mm 10mm² - - - - M6 - Copper
RS Stock No. 179-4410
Mfr. Part No.CZL35-12BM
BrandABB
$100.27
1 Box of 50
Box(es)
CZL - Uninsulated - - 20mm 35mm² - - - - M12 - Copper
RS Stock No. 179-4356
Mfr. Part No.CZL240-12CB
BrandABB
$60.79
Each
units
CZL - Uninsulated - 13.5mm 31mm 240mm² - - - - M12 - Copper
RS Stock No. 179-4367
Mfr. Part No.CZL25-10BM
BrandABB
$73.64
1 Box of 50
Box(es)
CZL - Uninsulated - - 16mm 25mm² - - - - M10 - Copper
RS Stock No. 179-4442
Mfr. Part No.CZL50-10
BrandABB
$120.67
1 Box of 50
Box(es)
CZL - Uninsulated - - 18mm 50mm² - - - - M10 - Copper
RS Stock No. 179-4310
Mfr. Part No.CZL16-12
BrandABB
$43.55
1 Box of 50
Box(es)
CZL - Uninsulated - - 18mm 16mm² - - - - M12 - Copper
RS Stock No. 179-4296
Mfr. Part No.CZL150-14
BrandABB
$205.12
1 Box of 20
Box(es)
CZL - Uninsulated - - 32mm 150mm² - - - - M14 - Copper
RS Stock No. 179-4385
Mfr. Part No.CZL25-8LB
BrandABB
$2.73
Each
units
CZL - Uninsulated - 7mm 13.5mm 25mm² - - - - M8 - Copper
RS Stock No. 179-4280
Mfr. Part No.CZL120-8BM
BrandABB
$192.07
1 Box of 25
Box(es)
CZL - Uninsulated - - 30mm 120mm² - - - - M8 - Copper
RS Stock No. 179-4413
Mfr. Part No.CZL35-12RA
BrandABB
$2.68
Each
units
CZL - Uninsulated - - 20mm 35mm² - - - - M12 - Copper
RS Stock No. 179-4264
Mfr. Part No.CZL120-10HRA
BrandABB
$11.02
Each
units
CZL - Uninsulated - - 30mm 120mm² - - - - M10 - Copper
RS Stock No. 179-4313
Mfr. Part No.CZL16-12RA
BrandABB
$1.24
Each
units
CZL - Uninsulated - - 18mm 16mm² - - - - M12 - Copper
RS Stock No. 179-4623
Mfr. Part No.R6-8VDC-H
BrandABB
$0.498
Each (In a Pack of 25)
units
- - Insulated Vinyl - - 6mm² 4 - - - M8 Yellow Copper
RS Stock No. 179-4292
Mfr. Part No.CZL150-12HRA
BrandABB
$15.10
Each
units
CZL - Uninsulated - - 32mm 150mm² - - - - M12 - Copper
RS Stock No. 179-4360
Mfr. Part No.CZL240-14
BrandABB
$6.41
Each
units
CZL - Uninsulated - - - 240mm² - - - - M14 - Copper
RS Stock No. 179-4443
Mfr. Part No.CZL50-10BM
BrandABB
$132.19
1 Box of 50
Box(es)
CZL - Uninsulated - - 18mm 50mm² - - - - M10 - Copper
RS Stock No. 179-4589
Mfr. Part No.R1.5-4VSC-H
BrandABB
$0.173
Each (In a Pack of 100)
units
- - Insulated Vinyl - - 1.5mm² 0.5 - - - M4 Red Copper
RS Stock No. 179-4387
Mfr. Part No.CZL25LPB
BrandABB
$7.63
Each
units
CZL - Uninsulated - - 18mm 25mm² - - - - - - Copper