ROV10-680K-2 Circuit Protection

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Varistors, MOVs, or transient voltage suppressors, are devices used to clamp and suppress voltage transients in a wide variety of applications. The ROV10-680K-2 is an example of a varistor that provides lightning and Transient Voltage Surge Suppressor (TVSS) protection to devices against voltage transients.

The ROV10-680K-2 provides sufficient protection from high voltage transients to meet the most stringent requirements of household, commercial, and industrial applications. It is designed to clamp high spikes in the voltage waveform and helps protect a wide variety of electronic devices from the damage that can result from overvoltage transients on an AC line.

The ROV10-680K-2 is mainly composed of a pair of zinc oxide varistors housed in a hermetically sealed SIOV plastic case. The two varistors include a connected silicone diode and are assembled onto a printed circuit board inside the plastic case. The varistors have a built-in voltage-clamping feature that can protect the system from short-term voltage transients.

When the voltage exceeds the varistor’s rated voltage (approximately 680VAC), it will conduct current and make the transient current safely flow through the silicon diode connected at its internal node. This suppresses the high current transient and prevents it from damaging the protected devices. When the voltage decreases to its normal value, the varistor ceases conduction and enables the current to pass through, returning the system to its normal operation.

The ROV10-680K-2 also contains a Thermal Fuse cut-off feature for thermal protection against fire and shock hazards in case of excessive varistor current due to overvoltage. This feature helps protect the system from catastrophic failure due to temperature rise from overvoltage transients and improves the safety and reliability of the protected device.

The device also has a wide operating temperature range (-25℃ to +85℃) that can be used in diverse environments, meaning it can provide excellent lightning protection and surge protection for a wide variety of applications. It can also protect the equipment from operating at an excessive temperature in the event of a sustained overvoltage or lightning strike.

Applications for the ROV10-680K-2 include AC power line overvoltage protection, AC and DC motor control overvoltage protection, air conditioner overvoltage protection, multimedia equipment overvoltage protection, and more. This make the device suitable for protecting household appliances, computer hardware, and various communication devices.

The ROV10-680K-2 is an effective type of Transient Voltage Surge Suppressor TVSS that provides robust protection against voltage transients. With its hermetically sealed SIOV plastic case, built-in voltage-clamping feature, Thermal Fuse cut-off feature, and wide operating temperature range, it can be used to protect a variety of electrical systems, equipment, and devices from lightning and overvoltage transients.

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