What factors affect the quality of car rotary isolation switch?

As we all know, under the seemingly insignificant shape of the car isolation cut off rotary battery switch, there is a huge practical value. When we use the car isolation cut off rotary battery switch, we not only experience its excellent conduction performance, convenient control mode, but also experience its comfortable car isolation cut off rotary battery. As for the light car isolation cut off rotary battery switch itself, it has precise structure, material, technology and so on. Among many factors, what affects the comprehensive quality of the light car isolation cut off rotary battery switch? Let's get to know.
For the light car isolation cut off rotary battery switch, the material and coating of the shrapnel and contact are the most important. The material and technology of shrapnel and contact need to consider not only its electrical performance, but also its service life. In general, in order to reduce the contact resistance between shrapnel and contact, brass or phosphor copper is often used, while electroplating is silver plating. In case of iron pin, silver plating can isolate SO2 gas in the air and keep it away from corrosive elements, but the anti-corrosion time is short. The use of brass or phosphor copper pin will be better. Therefore, the material and the thickness of the silver plating layer as well as its process treatment become the key to determine the comprehensive performance of the pin. In today's market, the best silver plating thickness in the market is more than 0.3 micron, which can even open up a three times gap with the inferior thickness. The silver plating process also has a wide range of effects, some of the pins directly silver plating, and some use multi-layer plating process, nickel plating or pre copper and so on.
Finally, the conduction performance of car isolation cut off rotary battery switch. Because in the physical structure, the car isolation cut off rotary battery switch relies on shrapnel and contact to conduct, so the key to affect it is the structure of the contact point.