CC4850E2VR

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Solid state relays (SSRs) are electronic components that enable current or voltage between two terminals. They have no moving parts, and work by using semiconductors to create an electrical bridge between two electrical contacts. They can be used in a variety of applications, and the CC4850E2VR is one example of a specifically designed SSR intended for use in professional applications. In this article, we will explore the application field and working principle of the CC4850E2VR.

Application Field

The CC4850E2VR is a medium-power SSR specifically designed to control professional electronic equipment. It can be used in a variety of applications, including motion control, process control, temperature control, power distribution, and switchgear applications. It is designed to meet the needs of high power, high speed, and high accuracy control systems. It has a wide operating temperature range of -40°C to +80°C, and is suitable for both indoor and outdoor applications.

The CC4850E2VR is designed with low electromagnetic interference (EMI) and low radiated emissions (EMR). It is also designed to provide high-reliability power failure protection, with built-in features to protect against power failure or voltage fluctuation. It is rated for up to 10A current, and up to 250V AC or 28V DC voltage.

Working Principle

The CC4850E2VR is an optically isolated SSR, which means that it works by using a light source to create a bridge between the two terminals. This light source is usually a LED, which is placed between two light-sensitive photodiodes. When a voltage is applied to the phototransistor, the LED will light up and the photodiodes will be forward biased, allowing current to flow between the two terminals. This process is aided by a current sink, which ensures that the LED always emits light at the same brightness level, regardless of the input voltage.

The CC4850E2VR also contains a variety of protective features to protect against overcurrent, overvoltage, overheating, and electrical noise. It is designed to provide 10A of current in normal and switch-on mode, and up to 200mA of current in standby/fault mode. It also contains a protective diode to allow for safe operation in a harsh electrical environment.

In addition to these features, the CC4850E2VR also contains a zero-voltage and zero-current switching circuit to ensure reliable connections and prevent misalignment of the contacts. This feature also provides a low-resistance path when the switch is in the off position, helping to reduce power consumption.

Conclusion

The CC4850E2VR is a medium-power optically isolated SSR designed for professional applications. It is rated for up to 10A current, and up to 250V AC or 28V DC voltage, and is suitable for both indoor and outdoor applications. It is designed with low EMI and EMR as well as a variety of protective features, such as overcurrent protection, overvoltage protection, a current sink, and a zero-voltage and zero-current switching circuit. Together, these features make the CC4850E2VR an ideal choice for use in motion control, process control, temperature control, power distribution, and switchgear applications.

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