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Intermatic is excited to introduce our cutting-edge surge protection solution, PANELGUARD® and the “NEW” PANELGUARD+. When it comes to eliminating surges at their source and avoiding damage and downtime, PANELGUARD® by Intermatic leverages best-in-class TPMOV technology. PANELGUARD® is the ultimate solution to eliminate surges right from the source, ensuring maximum protection against damage and minimizing downtime.
Photovoltaic (PV) systems are complicated. They are comprised of many components that require various levels of surge protection. The NFPA 780 offers surge protective device (SPD) installation recommendations for solar applications such as requiring SPDs on specific components. To learn the best SPD installation practices, watch this video.
Surge protective devices (SPDs) need to be sized correctly. If they are sized too low, the system could be susceptible to temporary overvoltages. If they are sized too high, it could be damaging to equipment.
This convenient SPD calculator by Littelfuse will determine an optimal MCOV size for your specific system.
Whole-home surge protection has become a much bigger issue for
residential electrical contractors in the last year as local authorities
have begun adopting the 2020 edition of the National Electrical Code
(NEC).
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