How many wires can I connect with one screw wire nut connector?
The total cross-sections of the cables should not be more than the nominal cross-section of the screw wire nut connector. If you do not want to screw the wire before inputting inside the connector, the number of wires should not be more than 3. Maximum 4. It depends on on the cross-sections of the wires, the bigger cross-sections you deal with, the less quantity you can screw.