Installation Guide

SM
SOLAR
MOUNT
INSTALLATION GUIDE
PAGE
MICROINVERTER SYSTEM GROUNDING
SM EQUIPMENT GROUNDING THROUGH ENPHASE MICROINVERTERS
The Enphase M215 and M250 microinverters have integrated grounding
capabilities built in. In this case, the DC circuit is isolated from the AC circuit, and
the AC equipment grounding conductor (EGC) is built into the Enphase Engage
integrated grounding (IG) cabling.
In order to ground the SOLARMOUNT racking system through the Enphase
microinverter and Engage cable assembly, there must be a minimum of three
PV modules connected to the same trunk cable within a continuous row.
Continuous row is dened as a grouping of modules installed and bonded per
the requirements of this installation guide sharing the same two rails. The
microinverters are bonded to the SOLARMOUNT rail via the mounting hardware.
Complete equipment grounding is achieved through the Enphase Engage cabling
with integrated grounding (IG). No additional EGC grounding cables are required,
as all fault current is carried to ground through the Engage cable.
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SOLARMOUNT INTEGRATED BONDING ADVANTAGE
WITH SYSTEM GROUNDING THROUGH ENPHASE MICROINVERTERS AND TRUNK CABLES
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