V420LC20APX2855

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Varistors, or Voltage-Dependent Resistors (VDRs), are devices with a highly nonlinear resistance over a wide operating voltage range. They are commonly used as a form of transient voltage suppression (TVS) in a variety of electronic applications because of their ability to control overvoltage during power-up and power-down of sensitive components. HV components, such as V420LC20APX2855, are designed to combat overvoltage and current transients in medium and high voltage applications up to 4200 Volts.

V420LC20APX2855 is a Metal Oxide Varistor (MOV) designed for an ultra-high energy capability. This MOV features an exceptionally low clamping voltage and is intended as a surge protection solution for critical equipment.

V420LC20APX2855 application field includes power supplies, solar inverters, and wind turbines that require effective protection against overvoltage transients. This product provides ideal protection during dangerous overvoltage transients, reducing the risk of damage to critical components in high voltage applications.

The working principle of V420LC20APX2855 employs a voltage regulator and a diode, or surge arrestor, to reduce and regulate the input voltage during overvoltage transients. The diode, usually a zener diode, becomes active when a damaging overvoltage is encountered, permitting current in either direction, depending on the polarity of the voltage, to dissipate the voltage spike and protect the equipment.

The MOV offers an additional layer of protection against overvoltage transients, allowing the voltage to further dissipate before continuing in a safe manner. The MOV works by utilizing the junction of two metals whose combined electrical resistance is negligible under normal operating conditions. When an extraordinarily high current is applied across the junction, it temporarily opens and rapidly reduces the voltage to a safe level, preventing damage to sensitive components.

By combining the regulator and MOV, V420LC20APX2855 offers an efficient and cost-effective solution for high-voltage applications. The use of a regulator and MOV combination limits the current flow before and during an overvoltage transient, ensuring the safe operation of the equipment.

This product is designed to meet the highest standards of safety and durability for industrial applications. It is the ideal solution for systems that require the highest level of protection against transient overvoltage. The combination of a regulator, diode, and MOV technology ensures that the system is safeguarded from the most severe power surges and overvoltages.

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