CWD4890

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Solid State Relays are modern devices that are used in many areas of industry. The CWD4890 Solid State Relay (SSR) is a common relay used in electronic control systems for switching loads. This device is known for its high accuracy, excellent reliability and its wide variety of applications.

The CWD4890 SSR is a DC-controlled SSR with a turn-on and turn-off time of less than 10 milli-seconds, making it suitable for high-speed switching. It is available in both AC-output and DC-output versions, so it can be used in a wide range of applications. The output capacity of the CWD4890 is 3 kVA/20A AC or 2 A DC.

The working principle of the CWD4890 is based on the principle of optoelectronics. This device uses an infrared light emitting diode (LED) to trigger the internal electronic switch. The LED is connected to a DC supply and the light from the LED is routed through a light-guide to the phototransistor. The phototransistor acts as a switch, allowing the current to pass through the output terminals when the LED is illuminated.

The CWD4890 is a solid-state relay specifically designed for DC switching. It is an ideal device for a variety of applications, such as those involving automotive, medical, industrial, and home applications. It can be used to control lights, motors, heating elements, contactors, solenoids, and many other types of DC loads.

The CWD4890 is a reliable device that offers a long service life, low power consumption, and high reliability. The device features high accuracy and low control noise. It is designed to provide excellent temperature resistance and to enable operation over a wide range of temperatures. In addition, the device has a built-in surge suppressor to protect the load from short circuits and power surges.

The CWD4890 is also well-suited for many industrial and consumer applications that require fast switching, low power consumption, and precise control. It can be used for switching temperature control devices, such as thermocouples and thermistors, in safety systems, ventilation systems, and medical equipment. The CWD4890 is also commonly used for controlling low voltage DC motors in automatic door openers and power steering applications.

Overall, the CWD4890 is a versatile and reliable SSR that is suitable for a wide range of applications. Its optoelectronics-based switching enables precise and fast switching, while its low power requirements and long service life make it an ideal choice for a variety of DC switching applications.

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