CKRD4820-10

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The CKRD4820-10 solid state relay from the CKRD range of products is the most popular choice in high power applications that require reliable, long-term cycle life and high accuracy. Its main advantages are a small size, low cost, high efficiency, good thermal performance, long life and accurate control.

The CKRD4820-10 is a fast switch solid state relay (SSR), which uses thyristor technology. It is designed to control high power AC or DC loads with a maximum continuous current rating of 48A. The device works best with low frequency (20 to 500 Hz) applications such as motor speed control. The accuracy of the relay is typically within 0.5%.

The CKRD4820-10 has a wide range of applications, including: motor control and speed regulation, industrial heaters and ovens, servo controls, solenoid actuator control and lighting control. It is suitable for a variety of AC and DC designs.

The CKRD4820-10 has a simple and easy to understand working principle. It uses a combination of a trigger signal and a reference current to turn the thyristor on and off. This type of SSR is also known as a zero-crossing relay because it only turns on and off when the AC mains cycle crosses the 0 peak or 0 valley. The collector-emitter voltage drop can reach up to 1.2V, providing a rapid response time. The response time depends on the load current, but is typically at least within 20ms.

In the ‘off’ state, the CKRD4820-10 consumes a small amount of power, typically 1mW. This makes it an efficient choice for applications that require longer on/off cycles. The device’s minimum operating voltage is 80V AC and its resistance can reach up to 150mOhms.

The CKRD4820-10 is a reliable and effective device for controlling high power AC and DC loads. It is easy to use and provides high accuracy, long life and low cost. The device is suitable for a variety of industry applications, including motor control and speed regulation, industrial heating, servo control, solenoid actuator control and lighting control.

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