Varistors

The most advanced varistor technology, high energy current and temperature rating and standard varistor ranges for many applications.

What is a Varistor?

A varistor is an electronic component with an electrical resistance that varies with the applied voltage. Varistors are also known as a voltage-dependent resistors or non-linear resistors. At low voltage varistors have a high electrical resistance which decreases as the voltage is raised. Modern varistors are primarily based on sintered ceramic metal oxide materials which exhibit directional behavior only on a microscopic scale.

Varistors are used as control or compensation elements in circuits either to provide optimal operating conditions or to protect against excessive transient voltages. When used as protection devices, they shunt the current created by the excessive voltage away from sensitive components when triggered. Basically, varistors provides high energy surge protection for large-scale electrical equipment.

HVR Varistors

AEP Components offers the complete range of high voltage Varistors from HVR. All HVR’s components and enclosures are manufactured to the highest industry standards and regulation. HVR is specialized in Silicon Carbide Varistors (SiC).

We can offer you the following varistor types and specific products:

• Silicon Carbide Varistors
  • SiC for lifting magnets
  • SiC for Relay protection
  • SiC for Current transformers
  • SiC for Excitation protection
• Varistor Discs and assemblies
  • Varistors with leads
  • Varistors discs
• Zinc Oxide Varistors