PS7802-1A-A

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Solid State Relays (SSRs) are devices used to electrically isolate a control signal from a load circuit. They are commonly used as a substitute for relays because of their electrical isolation and low power consumption. Apart from providing electrical isolation, SSRs have other advantages, such as long life and high operating temperatures. PS7802-1A-A is a type of Solid State Relay, and this article will discuss its application field and working principle.

Application Field for PS7802-1A-A

The PS7802-1A-A is a compact, RoHS compliant, optically isolated, high-capacity solid state relay. It is suitable for a wide range of industrial, commercial, and residential applications. It can be used for controlling various kinds of loads, such as motors, solenoids, transformers, and HVAC equipment. It is also suitable for protecting low voltage electrical systems from overvoltage, overload, and short circuits. It can be used in DC/AC power control, lighting control, temperature control, motion control, and other applications.

Working Principle of PS7802-1A-A

The PS7802-1A-A is an optically isolated solid state relay, which means that an optical signal is used to control the relay. This is done by lighting an LED inside the relay when a control voltage is applied. The LED then generates light pulses to drive an optically isolated thyristor, which then switches the relay. The advantages of this type of relay are its high speed, long life, and the ability to operate in high temperature environments, such as HVAC applications.

The PS7802-1A-A is composed of two parts: the optical input section and the switches section. The optical input section consists of an LED and a photodiode while the switches section is composed of an SCR (silicon controlled rectifier) or a triac (triode for alternating current). The LED is used to generate the optical signal, which is then converted to electric signal by the photodiode. The electric signal is then used to trigger the SCR or triac to switch the relay. The SCR or triac is used as an electrically operated switch, which will turn on when a certain threshold is crossed. When the voltage across the two terminals of the SCR or triac exceeds its threshold, the switch will turn on and the relay will be activated.

Advantages of PS7802-1A-A

One of the main advantages of the PS7802-1A-A is its high switching capacity. It can handle currents up to 10A and voltages up to 280VAC. It is also an optically isolated relay, so it provides good electrical insulation between the control signal and the load. This makes it suitable for applications where high levels of isolation are required. In addition, it can operate in high temperature environments, making it suitable for HVAC applications. It also has a long life when compared to mechanical relays.

Conclusion

The PS7802-1A-A is a compact, high-capacity, optically isolated Solid State Relay (SSR) suitable for a wide range of industrial, commercial, and residential applications. It uses an LED to generate an optical signal which is then converted to electric signal by a photodiode. This electric signal then triggers an SCR or a triac to switch the relay. The mainly advantages of this relay are its high switching capacity, optically isolated control, and ability to operate in high temperature environments. It is an ideal choice for applications that require electrical isolation and high-capacity switching.

The specific data is subject to PDF, and the above content is for reference