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3M bare copper ring terminal for 8 AWG wire 1/4 inch stud tin finish crimp barrel

3M

3M M8-14R/SX Ring Terminal 1/4 in Stud 8 AWG 1000 V Bare

SKU CH-YBHE-ETH6F

Crimp-on ring terminal for 8 AWG wire rated to 1,000 V with a 1/4 in stud hole

  • TypeElectrical Connectors
  • CSA Certified and UL Listed for code-compliant installations
  • Tin-plated copper contact resists corrosion for lasting conductivity
  • Brazed barrel prevents seam separation under vibration or load
  • Rated 1000 V and 347 °F for demanding circuit protection
  • Crimp termination fits 8 AWG wire with 0.18 in barrel ID

3M M8-14R/SX Ring Terminal

The 3M M8-14R/SX is a bare copper ring terminal designed for 8 AWG wire in electrical and industrial applications. It accepts a single wire size and carries a 1,000 V maximum voltage rating with a maximum operating temperature of 347 Degrees F. The tin-plated copper construction and brazed barrel provide a secure crimp termination for building wire, fixtures, luminaires and signs.

Build integration and clearance

The terminal fits a 1/4 in stud and features a tongue width of 0.47 in with a hole spacing of 0.4 in. A barrel inside diameter of 0.18 in and barrel length of 0.31 in define the crimp area for the conductor. The bare insulation coverage means no insulating sleeve is present, so the installer must provide external insulation or spacing as required by the application. It is not suited for wires smaller or larger than 8 AWG.

Certification and compliance

The component is UL Listed and CSA Certified, confirming compliance with relevant North American safety standards for electrical connectors. These certifications support its use in approved electrical installations where listed components are required. No additional accessories or software are included with the terminal.

Highlights

  • CSA Certified and UL Listed for code-compliant installations
  • Tin-plated copper contact resists corrosion for lasting conductivity
  • Brazed barrel prevents seam separation under vibration or load
  • Rated 1000 V and 347 °F for demanding circuit protection
  • Crimp termination fits 8 AWG wire with 0.18 in barrel ID

Specifications

Brand3M
TypeElectrical Connectors

Questions about this item

What is the maximum operating temperature before the tin-plated copper barrel degrades?

The terminal is rated for continuous operation up to 347 Degrees F before the tin-plated copper barrel and crimp joint begin to degrade.

How much heat does the crimped connection generate under full 1,000 V load all day?

At 1,000 V the crimped copper barrel runs cool because the brazed seam and tin finish keep resistance low; no forced-air cooling is needed.

Which crimp tool and die set are required to terminate 8 AWG wire in this barrel?

Use a crimper with a 0.18 in die that matches the barrel inside diameter to achieve a gas-tight crimp on 8 AWG wire.

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