The Automotive Relay actually functions as a switch. When the ignition switch is turned on, if the working component subjected to a large load is overloaded, it becomes an open state and plays an important role in protecting the circuit. For appliances that use a relatively large amount of electricity (such as starters, electric horns, etc.), if the switch is used to directly control the on and off of the current, the control switch will quickly burn out. Therefore, for the control of high-current electrical equipment, the intermediate relay is generally adopted, that is, the working state of the high-current electrical equipment is controlled by the opening and closing of the relay contacts. Some models use many miniaturized relays with internal resistance, which can save assembly space and reduce or eliminate the 300~500V peak voltage that may appear in the circuit, thus protecting the components in the electronic control system and preventing the function. Mistakes. The use of automotive relays can reduce the number of manual switches, control the strong current with weak current, protect smaller switches and thinner wires, thus ensuring the safe and orderly operation of electrical equipment, and achieving the purpose of sequentially controlling electrical appliances.
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