CALCULATOR CATEGORY

Surge & Lightning Protection Tools

Lightning exposure, SPD selection, coordination, and backup protection

SPDLightning exposure, SPD selection, coordination, and backup protection

Choose a starting surge protective device type for AC, DC, or PV systems based on exposure, installation point, and system earthing.

UpLightning exposure, SPD selection, coordination, and backup protection

Select a preliminary SPD type, connection arrangement, Uc or Ucpv range, discharge-duty level, and backup-protection checks.

LPSLightning exposure, SPD selection, coordination, and backup protection

Estimate a simplified lightning exposure score from building collection area, location, thunderstorm activity, and incoming lines.

SPD/FLightning exposure, SPD selection, coordination, and backup protection

Screen an SPD backup fuse or MCB rating from the SPD datasheet maximum backup protection and prospective fault current.