Wiring Diagram Of Two Way Switch. Two way light switching 3 wire system new harmonised cable colours note. The way i show allows you to fairly easily add a second two way switch to an existing light switch by simply wiring them together in a certain way.
Coming to the actual wiring the following schematic shows the implementation of a two wire control two way switch. The l1 terminals of both. Your lighting circuit must have.
5 rows the com l 1 and l 2 are the three terminals of the two way switch.
Lets assume the load you are controlling is a light. Lets assume the load you are controlling is a light. For simplicity the earth wire is not shown in the above diagram. When l1 is on l2 would be off.