Introduction to the types of relays

In our power facilities, we often use a kind of electrical appliance, which is a relay. It is used in the automatic control circuit. It is a kind of switch for current operation. It has the functions of conversion circuit, automatic regulation and safety protection. Relays have different types depending on the working principle and structural characteristics.
The first type, the electromagnetic relay, as the name implies, is an electrical device that works on the principle of electromagnetic effect. It uses the magnetic effect to turn on the power box to cut off the power.
Second, the reed relay is a sensing device for the coil to induce current, which is a device that turns off or turns on the circuit when there is magnet metal or other magnetically conductive objects are close to each other. Its structure is very sturdy and its durability is very high. It is used as a limit switch for the position of mechanical equipment. It can also be used to detect windows and iron doors that are not in the designated position.
Third, the time relay is a time-delay-controlled appliance with many types. Air-damped time relays are commonly used in AC circuits, which can effectively delay the power-on and power-off times according to their working principles.
Fourth, the mechanism for inquiring and controlling temperature based on natural induction raw materials is called a thermal reed. Its working principle is to use special materials (temperature sensitive magnetic) to work on peripheral temperature sensitive characteristics.
Fifth, the optomechanical appliance is a device that controls the transmission of optical signals.
Sixth, many intermediate control relays are used in automatic control and protection circuits. It is very convenient to install and install wiring. It has a long service life, low power consumption, and light pipe indication after work, which is convenient for on-site observation and refurbishment.

Details: single-phase relay Manufacturers