ERZ-E05E361

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The ERZ-E05E361 is a range of metal oxide varistors (MOVs). It is designed for an operating voltage of up to 360 volts AC/75 volts DC, and for applications with an external series resistor. It can be used to protect the connection of components from transient overvoltages due to power-line and short-circuits.

Their Applications

MOVs are used in television sets and other consumer electronics to reduce power surges from lightning and other sources. They are also used in energy-efficient homes and buildings to provide surge protection to electronic systems. They can also be used in industrial settings, to protect sensitive equipment from power outages and power spikes caused by other equipment in the same system.

MOVs are also used as thermal protection devices in high-voltage electrical networks such as those used in renewable energy production. This makes them invaluable in providing over-voltage and/or short circuit protection in switching networks of wind, hydro and solar installations.

The Working Principle

MOVs work by diverting dangerous surges or overvoltage from the power supply, thus preventing excessive levels of current from entering the protected equipment. They act as a protective shield by restricting the voltage level of the supply, and hence preventing damage to the protected equipment. With their wide operating range, they are capable of handling peak surges of up to 10kV.

An MOV consists of a semiconductor junction, which is connected to a metal oxide layer. When exposed to an overvoltage or a surge, the junction conducts, thus restricting the current flow to a safe level. Once the overvoltage has passed, the junction shuts off and the MOV reverts to its normal, low-resistance state. This helps to protect the connected equipment.

Conclusion

The ERZ-E05E361 range of non-resettable metal oxide varistors (MOVs) is designed for an operating voltage of up to 360 volts AC/75 volts DC, and gives protection against transient overvoltages. Their wide operating range makes them suitable for use in TV sets, consumer electronics and energy-efficient homes and buildings. MOVs act as a shield by restricting the voltage level of the supply, thus preventing damage to sensitive equipment.

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