Twisted Wire Connectors - Wire Nuts

Twisted wire connectors are commonly known as wire nuts, cone connectors, or thimble connectors, and is a type of electrical connector used to fasten two or more low-voltage electrical conductors. Wire nuts are one of the most common type of wire connector that twist over the stripped ends or wires to make tight connections. The connections are reversible by unscrewing the nut.

 

Wire Nut Size & Color Chart

Wire Connector

Min AWG

Max AWG
Grey 2 x #22 2 x #16
Blue 2 x #22 3 x #16
Orange 1 x #18 / 1 x #20 4 x #16 / 1 x #20 
Yellow 2 x #18 4 x #14 / 1 x #18
Red 2 x #14 2 x #10 / 1 x #12