ROV10-220L-S-2

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TVS - Varistors, MOVs

A varistor is a form of voltage-dependent resistor used to provide surge protection. It is typically composed of a semiconductor ceramic material with a large range of resistance variations. Transient Voltage Surge Suppression (TVSS) devices, such as the ROV10-220L-S-2 varistor, reduce the peak voltage of an incoming signal to protect sensitive electronic equipment. This article will explore the application field and working principle of the ROV10-220L-S-2.

Application Field

The ROV10-220L-S-2 is a class of varistor specifically designed for transient voltage surge suppression in single and three phase AC power systems. These surge suppressors are ideal for protection against lighting strikes, electrical noise, utility switching transients, and other over voltage events. Common applications include communications systems, medical equipment, elevator motors, computers, and industrial control systems. It is also suitable for various telecommunications circuits such as data, telephone, and instrumentation.

Working Principle

The ROV10-220L-S-2 varistor works by diverting transient voltage away from sensitive components. It works by changing its resistance in response to voltage changes. When the voltage exceeds a certain threshold, the varistor switches to a much lower resistance than its normal resistance. This drastically reduces the voltage flowing through, protecting the sensitive components down-stream.

Once the transient voltage has been diverted, the varistor returns to its normal resistance for the remainder of the cycle. This ensures that the voltage returns to its normal level without any disruption to the signal flow. The transient voltage surge suppressor effectively behaves like a switch, which can shunt high peak voltages away from the load while allowing signals at regular voltage levels to pass. This combination of protection and signal integrity makes it an ideal choice for a variety of different applications.

Other Features

The ROV10-220L-S-2 provides excellent transient current capabilities. It has a high surge capacity of 1000A and an energy absorption capacity of up to 1.6 kJ. This ensures that it is capable of protecting against high surges without the risk of damage. The varistor is also UL 1449 recognized, offering an additional level of safety.

The ROV10-220L-S-2 also has an inrush current rating of 30 A, which allows it to handle large inrush current spikes without reducing its surge capacity. Its high hold current makes it suitable for a variety of high-powered applications. Additionally, its robust construction and variety of mounting options make it easy to install and maintain.

Conclusion

The ROV10-220L-S-2 transient voltage surge suppressor provides an effective means of protecting sensitive electronic components from over-voltage conditions. It features a high surge capacity, inrush current rating, and UL1449 recognition, making it an ideal choice for a variety of applications. Additionally, its excellent load current capabilities and robust construction makes it a dependable surge protection solution.

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