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. 2552321581
Mfr. Part No.1-321897-3 (1)
SGD7.56
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RS Stock No. 2552340826
Mfr. Part No.615535-000 (1)
SGD3.77
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RS Stock No. 2552327769
Mfr. Part No.321059 (1)
SGD5.58
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RS Stock No. 2552338140
Mfr. Part No.31165 (100)
SGD17.40
1 Pack of 100
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RS Stock No. 2552341099
Mfr. Part No.63754-1 (12000)
SGD800.80
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RS Stock No. 2552340660
Mfr. Part No.641256-1 (100)
SGD45.52
1 Pack of 100
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RS Stock No. 2552341104
Mfr. Part No.63800-1 (6000)
SGD972.40
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RS Stock No. 2552327987
Mfr. Part No.322334 (1)
SGD1.26
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RS Stock No. 2552340540
Mfr. Part No.60775-2 (12000)
SGD2,202.20
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RS Stock No. 2552340938
Mfr. Part No.622043N004 (1)
SGD5.93
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RS Stock No. 2552328113
Mfr. Part No.34853 (100)
SGD25.74
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RS Stock No. 2552320283
Mfr. Part No.350218-1 (5000)
SGD177.56
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RS Stock No. 2552338519
Mfr. Part No.323291 (1)
SGD10.80
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RS Stock No. 2552324400
Mfr. Part No.950811-000 (1)
SGD244.67
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RS Stock No. 2552337514
Mfr. Part No.2-35634-1 (1)
SGD0.86
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RS Stock No. 2552338526
Mfr. Part No.324086 (100)
SGD71.02
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RS Stock No. 2552338626
Mfr. Part No.346656-000 (1)
SGD1.79
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RS Stock No. 2552337450
Mfr. Part No.2-31807-3 (1)
SGD1.26
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RS Stock No. 2552350218
Mfr. Part No.816870-000 (1)
SGD4.00
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RS Stock No. 2552340981
Mfr. Part No.62587-1 (10000)
SGD3,575.00
1 Pack of 10000
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