Metal Oxide Varistor, MYH Series, surge protective device

Contact Us

Varistor

Information Center

• Why You Need Lightning Protection

  1/26/2010

  Lightning protection systems have changed drastically since Benjamin Franklin first invented lighting rods in 1752. Today's systems must protect modern appliances, electrical systems and building constructions - they have to keep up with tile changing requirements of modern technology. Kestar (UL) k...

• When to Use a Surge Protector

  1/24/2010

  In the last section, we saw that power surges are a regular occurrence, unavoidable with our current system of providing electricity to homes and offices. This raises an interesting question: If power surges are an inherent part of our electrical system, why didn't we need surge protectors in our ho...

• Important specifications of Surge Protector

  12/21/2009

  Some specifications which define a surge protector for AC mains and some communication protection. Clamping voltage — better known as the let-through voltage. This specifies what voltage will cause the metal oxide varistors (MOVs) inside a protector to conduct electricity to the ground lin...

• Hazards of Metal Oxide Varistor

  12/14/2009

  While a metal oxide varistor is designed to conduct significant power for very short durations (~8/20 microseconds), such as caused by lightning strikes, it typically does not have the capacity to conduct sustained energy. Under normal utility voltage conditions, this is not a problem. However, cert...

• What is Surge Protector?

  11/3/2009

  A device that shields computer and other electronic devices from surges in electrical power, or transient voltage, that flow from the power supply. Standard American voltage for home and office buildings is 120 volts. Anything over this amount is considered transient and can damage electronic device...