Electrical Twist-On Wire Connectors are color coded for the number of wires and the wire sizes that they are designed to connect. These electrical wire connectors are CSA approved and are available in bulk packaging.
In very general terms, the color codes wire connectors are recommended for:
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Orange Wire Connectors - Maximum of (2) #14 wires
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Yellow Wire Connectors - Minimum of (2) #18 wires, Maximum of (3) #12 wires
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Red Wire Connectors - Minimum of (2) #18 wires, Maximum of (4) #10
Orange Twist On Wire Connectors are available in 100 per pack
YellowTwist On Wire Connectors are available in 100 per pack
Red Twist On Wire Connectors are available in 70 per pack
Electrical Twist-On Wire Connectors - 10 Pack - Various Sizes are CSA Certified and UL Listed.