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Red and yellow twist-on wire connectors, box of 100

3M

3M R/Y+BOX Twist-On Wire Connector 18-8 AWG Pack of 100

SKU CH-C0W6-C20HJ

Pack of 100 twist-on wire connectors handling 18-8 AWG copper with 600 V rating and 221 °F maximum temperature

  • Length1.17"
  • TypeWire
  • Handles wire gauges from 18 to 8 AWG for versatile connections
  • Rated for 600 V and 221 °F in demanding environments
  • UL Listed, CSA Certified and CE marked for code compliance
  • Winged twist-on design speeds up installation on the job
  • Pack of 100 connectors keeps large projects supplied

What the product is and who it is for

The 3M R/Y+BOX Twist-On Wire Connector joins copper conductors from 18 to 8 AWG in a single component. Electricians and maintenance technicians use the wing-style design for fast, tool-free splicing on residential or light-commercial circuits. A pack of 100 pieces supports multiple jobs without reordering.

Thermals noise and power draw in normal use

The connector body uses polypropylene and thermoplastic elastomer insulation rated to a maximum operating temperature of 221 degrees F. With a UL 94 V-2 flammability rating and a 600 V maximum voltage rating, it remains stable under continuous load. No active cooling or power consumption is involved.

What this replaces or upgrades

The red and yellow colour coding replaces separate connector sizes by covering a minimum combination of five 12 AWG wires up to a maximum of two 8 AWG wires. UL Listed, CSA Certified and CE marked, it suits projects that require listed components. Installers needing a smaller minimum wire gauge or a higher temperature rating should select a different connector.

Highlights

  • Handles wire gauges from 18 to 8 AWG for versatile connections
  • Rated for 600 V and 221 °F in demanding environments
  • UL Listed, CSA Certified and CE marked for code compliance
  • Winged twist-on design speeds up installation on the job
  • Pack of 100 connectors keeps large projects supplied

Specifications

Brand3M
Length1.17"
TypeWire

Questions about this item

How do I install the 3M R/Y+BOX Twist-On Wire Connector and what step is often missed?

Strip wires to the correct length, align the conductors, then push and twist the winged connector clockwise until tight; the step often missed is verifying no bare copper shows below the skirt.

What maintenance or replacement will the 3M R/Y+BOX connector need later?

Inspect periodically for discolouration, cracked polypropylene insulation, or loose grip; replace any connector that shows heat damage or no longer holds the wires firmly.

What limit appears first on the 3M R/Y+BOX connector during sustained high-current use?

The 221 °F maximum operating temperature is the first limit reached under sustained load before the 600 V rating becomes a factor.

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