Install Manual

Table Of Contents

Grid Connection Guidelines

l Equipmentgroundingtighteningtorques:4-6AWG:45lb-in,8AWG:40lb-in,10-14AWG:35lb-in.

l Theconduits,hubsandfittingsmustbesuitedforfieldwiringsystems.

l ThehubsandotherfittingsmustcomplywithUL514B.

l Useonlycopperconductorsratedforaminimumof90°C.

l FortheSE10KUS,SE20KUS,SE33.3KUSthreephaseinverterswhereoppositepolarityDCconductors

areroutedinthesameconduit,1000Vratedcablesmustbeused.

l UsetheconduitandwiringappropriatefortheinstallationlocationpertheNEC.Outdoor

installationsmustusecomponentsthatareratedNEMA3Rorhigher.

NOTE

For more wiring information refer to the

SolarEdge Recommended AC Wiring

Application Note

, available on the SolarEdge website at

https://www.solaredge.com/sites/default/files/application-note-recommended-

wiring.pdf

Setting the Inverter to Support 208V 3-wire Grid

SolarEdgeinvertersthatsupportthe208V3-wiregridareequippedwithtwofuseholdersandafusein

eachunit.ThepositionofthefuseconfigurestheACgridconnection:4-wireor3-wiregridconnection.

Bydefault,thefuseislocatedinthe4-wirefuseholderoftheinverter,andinthe3-wirefuseholderthere

isaplasticdummyfuse.

Tosettheinverterfor3-wiregridconnection,youmustmovethefusefromthe4-wirefuseholder,

markedasYGRID,tothe3-wirefuseholder,markedas∆GRID(seeFigure21).

To set the inverter for 208V 3-wire grid connection:

NOTE

Perform this procedure for all inverter units.

NOTE

Perform this procedure before connecting the inverter to the AC grid.

1. Removetheinvertercover:Opentheinvertercover’ssixAllenscrewsandcarefullypullthecover

horizontallybeforeloweringit.

-Three Phase System Installation Guide MAN-01-00527-1.1

Grid Connection Guidelines