The words' switch 'are interpreted as' on' and 'off'. It still refers to an electronic component that can open a circuit, interrupt current, or cause it to flow to other circuits. The most common switch is an electromechanical device that allows humans to operate, with one or several electronic contacts. The "closed" of the contact indicates that the electronic contact is conducting and allows current to flow; The "open" of the switch indicates that the electronic contact is not conducting, forming an open circuit and no current is allowed to flow
Main parameters
Rated voltage: refers to the safe voltage allowed by the switch during normal operation.
If the voltage applied to both ends of the switch is greater than this value, it will cause ignition and breakdown between the two contacts Rated current: refers to the maximum safe current allowed to pass through when the switch is turned on. When this value is exceeded, the contacts of the switch will burn out due to excessive current Insulation resistance: refers to the resistance value between the conductor and insulation parts of the switch, and the insulation resistance value should be above 100M Ω Contact resistance: refers to the resistance value between each pair of contacts of a switch in the open state. Generally, it is required to be below 0.1-0.5 Ω, and the smaller the value, the betterWithstand voltage: refers to the highest voltage that a switch can withstand between a conductor and ground
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