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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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Part Details Brand Stock Series Series Number Insulation Insulation Material Outer Ring Diameter Inner Ring Diameter Maximum Wire Size mm² Minimum Wire Size mm² Minimum Wire Size AWG Maximum Wire Size AWG Stud Size Colour Contact Material Contact Plating Thickness Overall Length Maximum Operating Temperature Minimum Operating Temperature
Mueller Uninsulated Crimp Ring Terminal, 12.7mm Stud Size Mueller 511 - - Uninsulated - - 13mm - - - 4/0AWG 12.7mm - Copper Tin 2.67mm 59.7mm - -
Mueller Uninsulated Crimp Ring Terminal, 12.7mm Stud Size Mueller 200 - - Uninsulated - - 13mm - - - 2/0AWG 12.7mm - Copper Tin 2.41mm 52mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 200 - - Uninsulated - - 10.4mm - - - 2/0AWG 9.525mm - Copper Tin 2.41mm 52mm - -
Mueller Uninsulated Crimp Ring Terminal, 12.7mm Stud Size Mueller 194 - - Uninsulated - - 13mm - - - 1/0AWG 12.7mm - Copper Tin 2.41mm 46.5mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 192 - - Uninsulated - - 10.4mm - - - 4/0AWG 9.525mm - Copper - 2.67mm 59.7mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 190 - - Uninsulated - - 10.4mm - - - 4AWG 9.525mm - Copper Tin 1.93mm 39.1mm - -
Mueller Uninsulated Crimp Ring Terminal, 12.7mm Stud Size Mueller 189 - - Uninsulated - - 13mm - - - 3/0AWG 12.7mm - Copper Tin 2.54mm 55.9mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 189 - - Uninsulated - - 10.4mm - - - 1/0AWG 9.525mm - Copper - 2.41mm 46.5mm - -
Mueller Uninsulated Crimp Ring Terminal, 7.9375mm Stud Size Mueller 185 - - Uninsulated - - 8.4mm - - - 4AWG 7.9375mm - Copper Tin 1.93mm 39.1mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 183 - - Uninsulated - - 10.4mm - - - 2/0AWG 9.525mm - Copper - 2.41mm 52mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 181 - - Uninsulated - - 8.4mm - - - 8AWG 9.525mm - Copper Tin 1.65mm 37.3mm - -
Mueller Uninsulated Crimp Ring Terminal, 7.9375mm Stud Size Mueller 180 - - Uninsulated - - 8.4mm - - - 2AWG 7.9375mm - Copper - 2.41mm 41.1mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 180 - - Uninsulated - - 10.4mm - - - 1AWG 9.525mm - Copper Tin 2.41mm 43.7mm - -
Mueller Uninsulated Crimp Ring Terminal, 6.35mm Stud Size Mueller 176 - - Uninsulated - - 6.9mm - - - 6AWG 6.35mm - Copper - 1.65mm 37.3mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 176 - - Uninsulated - - 10.4mm - - - 1/0AWG 9.525mm - Copper Tin 2.41mm 46.5mm - -
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 163 - - Uninsulated - - 10.4mm - - - 4/0AWG 9.525mm - Copper Tin 2.67mm 59.7mm - -
Hirose EF1 Series Insulated Crimp Ring Terminal, 26.66mm² to 42.42mm² Wire Size Hirose 96 EF1 - Insulated - 22mm 5.3mm 42.42mm² 26.66 10AWG 2AWG - - Copper Alloy Tin 1.8mm - +105°C -25°C
Mueller Uninsulated Crimp Ring Terminal, 9.525mm Stud Size Mueller 87 - - Uninsulated - - 10.4mm - - - 8AWG 9.525mm - Copper Tin 1.37mm 33.8mm - -
ABB CZL Series Uninsulated Crimp Ring Terminal to 1000mm² Wire Size
  • RS Stock No. 179-4238
  • Brand ABB
  • Mfr. Part No. CZL1000-BL
ABB 0 CZL - Uninsulated - 84.6mm - 1000mm² - - - - - Copper Tin 16mm 295mm - -
ABB CZL Series Uninsulated Crimp Ring Terminal, M10 Stud Size to 10mm² Wire Size
  • RS Stock No. 179-4239
  • Brand ABB
  • Mfr. Part No. CZL10-10
ABB 0 CZL - Uninsulated - 15mm - 10mm² - - - M10 - Copper Tin 1.5mm 32mm - -
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