Schematic diagram of double control switch

The circuit diagram and principle of the dual-control switch are as follows:

1 and Interpretation of Circuit Diagram of Double Control Switch

Double control switch is to control a lamp or electrical equipment through two switches at the same time. No matter which switch is used, the purpose of controlling the on-off of electrical equipment can be achieved.

2. Principle circuit diagram of double control switch

In fact, the wiring principle of double-control switch is to connect two single-pole switches in series to the circuit of electrical appliances, so that any switch can control the functions of electrical appliances in the circuit.

The wiring circuit of double-control switch must be controlled by live wire, otherwise it is unsafe. If it is controlled by neutral line, it may flicker. If the light in your double-control switch circuit flashes, you can check whether there is something wrong with the switch first. If there is nothing wrong with the switch, then check whether the zero line in the dual-control switch circuit is controlled.

Commonly used double-control switch wiring circuit

1. The traditional standard double-control switch wiring is mainly that one end of this double-control switch circuit is connected to the live wire and the other end is connected to the zero wire; In the circuit: switch 1 has one end connected to the live wire and the other end connected to switch 2; One end of the switch 2 is connected to the switch 1, and the other end is connected to a lamp or an electrical appliance; One end of the electric lamp or appliance is connected to the neutral line, and the other end is connected to the switch 2.

2. Alternate double-control switch wiring Both switches are connected with live wires, mainly this alternate double-control switch circuit. Instead, one end of its two switches is connected to the live wire, the other end is connected to lighting or electrical appliances, and the two switches control the live wire, which is also safe. This innovative alternative connection will use fewer wires than traditional connections.