Lightning And Surge Suppression - enphase IQ8MC Installation And Operation Manual

Best practice: Center-feed the branch circuit to minimize voltage rise in a fully populated branch. This
reduces the voltage rise as compared with an end-fed branch. To center-feed a branch, divide the circuit
into two sub-branch circuits protected by a single OCPD.

Lightning and surge suppression

Enphase microinverters have integral surge protection, greater than most traditional inverters. However, if the surge
has sufficient energy, the protection built into the microinverter can be exceeded, and the equipment can be
damaged. For this reason, Enphase recommends that you protect your system with a lightning and surge suppression
device. In addition to having some level of surge suppression, it is also important to have insurance that protects
against lightning and electrical surges. Enphase has tested the following devices:
• Leviton 51110-SRG
• Schneider SquareD HEPD50
NOTE: Protection against lightning and resulting voltage surges must be in accordance with local
standards.
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IQ8MC/IQ8AC/IQ8HC Microinverters Installation and Operation Manual
© 2023 Enphase Energy Inc. All rights reserved. October 2023
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