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
New
RS Stock No. 213-1350
Mfr. Part No.LV429253
MYR177.45
Each
units
LV4 - Uninsulated - - - - - - - - - - -
New
RS Stock No. 211-2653
Mfr. Part No.LV429507
MYR740.47
Each
units
LV4 - - - - - - - - - - - - -
New
RS Stock No. 213-1349
Mfr. Part No.LV429252
MYR150.33
Each
units
LV4 - Uninsulated - - - - - - - - - - -
New
RS Stock No. 211-2651
Mfr. Part No.LV429505
MYR568.67
Each
units
LV4 - - - - - - - - - - - - -
New
RS Stock No. 211-2641
Mfr. Part No.LV429254
MYR222.47
Each
units
LV4 - Uninsulated - - - - - - - - - - -
New
RS Stock No. 211-2652
Mfr. Part No.LV429506
MYR464.42
Each
units
LV4 - - - - - - - - - - - - -
New
RS Stock No. 211-2649
Mfr. Part No.LV429504
MYR516.79
Each
units
LV4 - - - - - - - - - - - - -