Surge Arrester Selection Tool

The Right Surge Protective Device in Five Questions

Answer five short questions to see the right SPD type and recommended products for your facility. This tool covers AC mains lines only; for solar (PV) and DC applications, please contact us.

Step 1 / 5
This is a preliminary recommendation. The final SPD selection is made by reviewing the grid short-circuit current, cable lengths, existing protection devices, and the facility's project data. An incorrectly selected SPD does not provide protection and can itself create a risk for the facility. Share your result with us and we will verify it and prepare a final recommendation.