The 3M™ Performance Plus™ Wire Connector electrically connects two or more conductor ends in a pigtail application and insulates the connection. It combines a very small shell with an increased wire range. The spring bites wire quickly with minimal effort, and the small shell fits easily into tight spaces, while its flexible skirt helps protect workers from contact with over-stripped wires.This 3M Performance Plus Wire Connector is great for various conductor sizes: four #14, two #2, and three #8 AWG. 3M Performance Plus Wire Connectors are UL Listed for 600 volts on copper wire. They are available in five colour/wire range options: O/B+ (orange/blue) 2 #22 - 3 #12 AWG, T/Y+ (tan/yellow) 2 #22 - 3 #12 AWG, R/Y+ (red/yellow) 2 #18 - 2 #8 AWG, T/R+ (tan/red) 2 #18 - 5 #12 AWG, and B/G+ (blue/grey) 4 #14 - 2 #6 AWG.