LH1529AAC

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Solid State Relays are devices that use low power electronic switches and interrupters, instead of electro-mechanical contactors, to control much higher power loads. The LH1529AAC is a popular choice for those in the automation industry who are looking for a reliable, single-phase solid state relay (SSR).

The LH1529AAC is designed for use with alternating current (AC) supply and has great performance parameters over a range of supply frequencies. The device has a maximum input voltage rating of 700 VAC and a fast turn-on and turn-off switching speed of less than 8 ms. The device is also relatively compact, with a total length of 55 mm and a width of 40 mm.

The primary application fields for the LH1529AAC are industrial control systems, motor turning control, general heating, lamp dimming, AC APFC (active power factor correction) control and automation control applications. The device also has a wide range of applications such as the protection of voltage and current, temperature control, monitoring and instrumentation.

Working principle of the LH1529AAC Solid State Relay is as follows: The input terminals are connected to a DC power source, which is normally 5 VDC, 0 - 10 VDC or 4 - 20 mA DC. The input control voltage is then fed back to the control circuit, which is comprised of an AC-DC converter and a voltage-isolated drive circuit. When an external input voltage is present, the AC-DC converter converts the incoming AC voltage to a DC voltage that is used to power the voltage-isolated drive circuit. In addition, the drive circuit is able to sense the input voltage and accordingly drive the output transistors. This, in turn, switches the load on/off, thereby controlling the load current.

The LH1529AAC also offers a variety of protections, including reversed input protection, lightning current protection, and overload protection. This makes it well suited for applications where safety and reliability are essential. Furthermore, the device has a high isolation voltage of 4 KVAC, thus providing reliable performance over a wide range of supply voltages and temperatures.

To summarize, the LH1529AAC is an excellent choice for those in the automation industry who are looking for a reliable single-phase solid state relay. The device is designed for use with alternating current (AC) supply and has great performance parameters over a wide range of supply frequencies. The device also has a variety of protections to ensure safety and reliability, making it well suited for sensitive applications. Finally, the device has a high isolation voltage, ensuring reliable performance over a wide range of supply voltages and temperatures.

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