13.4 Nut wire connectors

The twist-on wire connectors are used for connecting two and more conductors in installation boxes, sockets, appliances etc. It is a screw dismountable connection and the connectors can be used repeatedly. The expanded mouth of the connector is used for easier insertion of the conductor. The individual types differ in colour, determined by the nominal cross-section. In one connector, it is possible to combine flexible and solid conductors, or conductors with different cross-sections.