Three-way switch system and adapter therefor

摘要

A three-way switch wiring system and adapter therefor. The system includes an adapter having a pair of prongs which are engageable with first and second power contact strips in a wiring apparatus or junction box. The adapter includes an insulating housing with first and second common contact strips, a normally open contact strip and a normally closed contact strip therein. The contact strips and housing have wire receiving openings therein for receiving the wires of a pair of three-wire cables from first and second three-way switches. The wires on the cable from the first switch are connected to the first common contact strip and the normally open and normally closed contact strips, and the cable from the second switch is connected to the second common contact strip and the normally and normally closed contact strips. Sockets are disposed in the housing around the sets of wire receiving openings for wedging engagement with an outer insulating sheath of the cables. The housing has a protruded portion thereon adjacent the prongs, and the protruded portion extends into a socket in the wiring apparatus or junction box when the prongs are engaged with the first and second power contact strips. A representative three-way wiring circuit is also disclosed.