What's the difference between one pair of two controls and one control?
One-to-two control means that a switch has two contacts, normally open and normally closed (that is, a pair). Single switch control is the most common in home circuits, that is, one switch controls one or more appliances. Usually, two double-control switches are used to control a lamp or other electrical appliances, that is to say, there can be two switches to control the switches of lamps and other electrical appliances, such as turning on the switch when downstairs and turning off the switch when upstairs.
1. If you want to turn off the light with the traditional switch, you have to go downstairs and turn it off. This trouble can be avoided if a double control switch is used. In addition, the double control switch is also used to control the lights that need to be forced to light in the emergency lighting circuit. Two ends of a double-control switch are connected with a double power supply, and one end is connected with a lamp, that is, one switch controls one lamp.
2. According to the number of connected electrical appliances, one-time charging control can be divided into single charging control, single charging control, single charging control, single charging control, single charging control and single charging control. For example, a single control switch is used in the kitchen, and one switch controls a group of lighting lamps; There may be three spotlights installed in the living room, so it can be controlled by a single control triple switch.
How to connect the double control switch?
Terminals of double-control switches are usually marked with L, L 1, L2. When the L terminal enters the line, one end of L 1 and L2 is connected to L, and after the switch is pressed, the other end of L 1 and L2 is connected to L. ..
1. Peel the thread with diagonal pliers first, and be careful not to leave too long thread to avoid touching it.
2. Let's take the L of the left switch as the pre-input, and the L 1 of the two switches are connected to L2 correspondingly, and then connect the L of the right switch to one end of the lighting lamp, and the other end of the lighting lamp is connected to the zero line.
3. After connecting the wires, be sure to wrap the lamp holders on both sides with insulating tape to avoid leakage.
4. Finally, connect the left front to the zero line to complete the wiring of all double-control switches.
For the convenience of wiring, we can remember the circuit diagram of the double-control switch, so the actual operation is very simple.
If you want to choose a switch socket, everyone should pay attention to the specific methods and choose the appropriate switch socket according to their own needs. The above is about the difference between one-to-one double control and one-to-one single control and the connection mode of double control switches. In the process of construction, everyone should pay attention to the overall construction method and quality to facilitate life.