221 Lever-Nuts Wire Connectors are convenient and reusable connectors. If you need to change other wires, just flip the little lever up and pull out what you need and replace. Besides, lever wire connectors adopt special and scientific design, which will save space effectively. And when you combine the wires, you don't need to worry about a twist between the wires. About the material, lever nut wire connector housing is made of the high quality PC material. With the advantages of long life, corrosion resistance, high-temperature resistance and aging resistance. It's safer than traditional wire connectors. Lever wire connectors assortment could satisfy your different demand ( it has 2 port, 3 port, 5 port), it can connect any combination of solid, stranded, and flexible copper wires.Usually, 221 lever wire connectors suit for 12-24AWG wires. But another 221 series connectors ( 221-612, 221-613, 221-615 ) could suit wiring 10AWG max, this could meet some customers special wiring requirement, such as distribution control box, loudspeaker, junction box etc. Its material and functions are same as before except wire range.

221-612 ( 613, 615 ) Lever Wire Connector Features:

8) Mounting carrier for installation conforms to standards