10K300 10mm 300V Varistor

It is 10mm 300V Varistor. Varistor, thermistor or Thermal resistance is a circuit element whose electrical resistance decreases as the temperature of the environment or the contact surface increases. Varistor resistance is a type of temperature controlled resistor.

• Varistor thermistors are placed in systems that do not want to overheat such as transformers and motors.
• The Varistor resistor is placed for level control in a water tank.
• When the Varistor resistor is connected in series with the motor, it first draws a small current and ensures safe starting of the motor.
• It is widely used in areas where heat balance is critical.

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