How to connect the three-open double-control switch

Wiring diagram of three-open double-control switch

Wiring diagram of two lights controlled by double-open single-control switch?

Connect two lights, but holes L 12 and L22 are not connected.

In order to expand the data, two double control lines are added between the two switches to complete the control requirements. ?

The connection is as follows:

The hole marked with L at the terminal of switch A is a male terminal, and the live wire and double control lines are connected on both sides (the two holes are generally represented by L 1 and L2).

The hole marked with L on the terminal of switch B is connected with the lamp cap wire,

Both sides of the dual-control wiring are positive and negative (two holes are generally represented by L 1 and L2).