In the past, the general household electric switch in the home may be a wooden board with a switch on it, which will enable families with good conditions to use the Ready Board Box, but now it is different. Basically, the household Ready Board Box can be seen by every family. In the first place, the function of the household Ready Board Box is much safer than the electric switch on the wooden board, and it is also very beautiful. It has a good function, such as when the circuit leaks electricity, The household Ready Board Box will respond by itself and cut off the power supply in time. It can be said that this is a very big protective measure for life safety and property safety. For example, we often hear and see some old-fashioned residential buildings, which cause fires due to circuit problems, causing great losses. So how does this function of the household Ready Board Box come true? In fact, it is OK to add a leakage protector in the household Ready Board Box,

Leakage protector means to protect the circuit from leakage. The leakage protector has the functions of leakage current detection, control processing and protection execution. Its working principle is actually that the AC 220V mains power leads to load through the output of the protection switch K1 and the current transformer TA. Normally, the current of the power phase line and the zero line is the same and the direction is reversed. That is because the magnetic flux generated in the TA core of the current transformer resists each other, and the TA induction coil L3 is voltage free induction.

If there is leakage or electric shock, the current of the phase line and the zero line is not the same, and their magnetic flux cannot be completely offset, and an induced voltage will be generated on L3. If it is amplified after being input on the integrated circuit IC1, the trigger signal of pin 1 of IC1 outputs to let the thyristor and conduction compete with each other. If the action becomes "off", then you have to close it yourself after the fault is eliminated. You can see it clearly. In short, electrical components with many functions can be added to the household Ready Board Box. These components can realize some functions, such as electric shock breaking, leakage breaking, etc.