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Blue nylon insulated ring terminal with 1/2 in stud hole and tin plated copper barrel

3M

3M MN6-12R/SK Ring Terminal 6 AWG 1000 V Nylon Insulated 1/2 in Stud

SKU CH-6ESV-TCD8Y

Connects 6 AWG wire to a 1/2 in stud at up to 1000 V with a nylon-insulated, tin-plated copper barrel that is CSA certified and UL listed

  • Product typeElectrical Connectors
  • Rated for 1000 V maximum voltage
  • Operates up to 221 degrees F maximum temperature
  • Brazed barrel ensures strong crimp connection
  • Nylon insulation provides partial coverage protection
  • Fits 6 AWG wire with 1/2 in stud

3M 6 AWG Ring Terminal

The 3M MN6-12R/SK is a copper ring terminal built for 6 AWG wire at up to 1000 V. It suits installers terminating building wire, fixtures or luminaires where a 1/2 in stud connection is required.

Capacity and headroom

The barrel accepts exactly 6 AWG conductors with a 0.25 in inside diameter and 0.39 in length. Its brazed barrel and tin-plated copper handle the rated voltage continuously, while the 221 °F temperature limit and 0.81 in tongue width define the thermal and mechanical ceiling for the joint.

Nylon insulation and certifications

Blue nylon provides partial coverage over the crimp zone and resists abrasion in panel work. The terminal carries UL Listed and CSA Certified markings, confirming compliance for the stated wire range and voltage without additional qualification steps.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $288.99
Pricier than about 91% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand name3M
Product typeElectrical Connectors

Questions about this item

Will the 0.81 in tongue width fit the 1/2 in stud on my existing bus bar?

Yes, the 0.81 in tongue width is designed for a 1/2 in stud and the barrel accepts 6 AWG wire with a 0.25 in inside diameter.

How can I verify the crimp is secure on the 6 AWG wire after installation?

A proper crimp fully seats the wire in the 0.39 in brazed barrel; the tin-plated copper contact should show no loose strands and the nylon insulation must remain intact.

Does the package include the crimp tool needed for the 6 AWG barrel or must I buy it separately?

The terminal is sold as the connector only; a compatible crimp tool for 6 AWG brazed barrels is required separately to complete the termination.

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