Installation Guide

Grid Connection Guidelines
NOTE
Three phase inverters require neutral connection at all times (only WYE type grids with
neutral connection are supported).
l Insinglephaseinvertersconnectedtocornergroundedgrids,connecttheL2terminal
tothegroundedconductor.Whenconnectingtoothergrids,L1andL2are
interchangeable.
l Equipmentgroundingtighteningtorques:4-6AWG:45lb-in,8AWG:40lb-in,10-14
AWG:35lb-in.
l Whenconnectingmultiplesinglephaseinvertersinaninstallationconnectedtoa
three-phasegrid,phasebalancingmayberequiredbytheutilityorgridoperator.Phase
balancingissupportedintheSolarEdgeinverters.Fordetailedinformation,refertothe
SolarEdge Phase Balancing Connection Guide,availableontheSolarEdgewebsiteat
http://www.solaredge.us/files/pdfs/phase_balancing_connection_guide.pdf.
NOTE
l The conduits, hubs and fittings must be suited for field wiring systems.
l For three-phase inverters where opposite polarity DC conductors are routed in the
same conduit, 1000V rated cables must be used.
l For single-phase inverters, use only copper conductors rated for a minimum of
75°C.
l For three-phase inverters, use only copper conductors rated for a minimum of
90°C.
l The hubs and other fittings must comply with UL514B.
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.
l For more wiring information refer to the SolarEdge Recommended AC Wiring
Application Note, available on the SolarEdge website at
http://www.solaredge.us/files/pdfs/application-note-recommended-wiring.pdf
SolarEdge-Installation Guide MAN-01-00002-4.0
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Grid Connection Guidelines