What types of relais 12v can be divided into

In our electricity facilities, we often use an electrical appliance that is a relay. The relais 12v is used in an automatic control circuit. It is a switch for current operation. It has the function of conversion circuit, automatic adjustment, and safety protection. Relais 12v has different types according to different working principles and structural features.

The first type, electromagnetic relais 12v, as the name suggests, is an electrical device that works on the principle of electromagnetic effect. It uses magnetic effect to turn on the power box and cut off the power.
The second type, magnetic relais 12v is a coil-induced current sensing device, which is a device that closes or opens the circuit when there is a magnet metal or other magnetically conductive objects approaching. Its structure is very sturdy and durable. It is used as a limit switch for the position of mechanical equipment. It can also be used to detect that windows and iron stores are not in designated locations.
The third type, time relais 12v is a time-delayed electrical appliance, and there are many types of it. Air damping time relays are commonly used in AC circuits, which can effectively delay the power-on and power-off time according to their own working principles.
The fourth type, the mechanism used to query and control temperature based on natural sensing materials is called thermal dry reed, and its working principle is to use special materials (temperature-sensitive magnetic) to work with the characteristics of the surrounding temperature.
Fifth, opto-mechanical appliances are devices that control the transmission of optical signals.
Sixth, the intermediate relais 12v is used in many automatic control and protection circuits, which is very convenient for installation and wiring, and has a long use time, low power consumption, and a light tube indicator after work, which is convenient for on-site observation and repair.