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Advantages of the VARIO® MOVs

The VARIO® range includes a wide range of solutions designed to protect power lines, phone lines and IT systems.

  • Great quality/price ratio
  • Minor space requirements
  • Modular versions for DIN rail configurations

Traditional SPDs

The VARIO® SPDs range is based on two traditional technologies. On the one hand, spark-gaps used in installations equipped with lightning rods or when a high discharge level is required. On the other hand, MOVs whose specificity is to become conductive once a certain voltage level is reached thus evacuating overvoltage surges to the ground.
A leakage current can appear after repeated use. For this reason, installing a thermal disconnector (fuse) or a fault interrupter is mandatory.

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