Solid State Relay (SSR) is a contactless switch composed of microelectronic circuit, discrete electronic device and power electronic power device. It is a four-terminal device with two terminals as the input terminal and the other two terminals as the output terminal. The isolation device is adopted in the middle to realize the electrical isolation of input and output.

What are the advantages of solid state relay?

1. High service life and high reliability: solid state relays have no mechanical parts and the contact function is completed by solid devices. Since there are no moving parts, they can work in the environment of high impact and vibration. Due to the inherent characteristics of the components that make up solid state relays, solid state relays have long service life and high reliability.

2. High sensitivity, small control power, good electromagnetic compatibility: solid state relay has wide input voltage range, low drive power, and can be compatible with most logic integrated circuits without buffer or driver.

3. Fast conversion: solid-state relays use solid devices, so the switching speed can be from a few milliseconds to a few microseconds.

4. Small electromagnetic interference: solid state relay has no input "coil", no contact ignition arc and bounce, thus reducing electromagnetic interference. Most AC output solid state relays are a zero voltage switch, which is switched on at zero voltage and off at zero current, reducing the sudden interruption of current waveform and thus reducing the switching transient effect.

regulation in PLC (procedure is not difficult to do), output 4-20mA signal, 4-20mA signal into the SCR trigger board, SCR trigger board control SCR heating power.

We all know a lot about SCR module, its application is very wide, it will be used more and more in the future, choose it, I believe your choice is not wrong, I hope this introduction can bring you help.

As the vice president unit of Yueqing Rectifier Association, SaiShe Semiconductor Co., Ltd. actively participates in various activities of the association and plays an exemplary role in the industry as a leading enterprise.