Wiring A Three Way Light Switch Uk. If you are describing this switch to an electrician or electrical supplier you should refer to it as a 1 gang intermediate light switch. All three switches are connected together by a three core and earth control cable.
Tighten the screws firmly. All three switches are connected together by a three core and earth control cable. The circuit consists of a two way switch at each end top and bottom switches in fig 2 and an intermediate switch in the middle.
Sometimes called a crossover switch for obvious reasons.
Feed a length of 14 3 type nm cable or 12 3 if you re connecting to 12 gauge wire between the two boxes. Sometimes called a crossover switch for obvious reasons. The exact cable you use depends on the gauge of the existing wiring in the rest of the circuit but in most cases the correct cable will be either 12 3 or 14 3. Tighten the screws firmly.
