Installation Guide

Chapter 4: Connecting the AC and the Strings
to the Safety Switch
TheSafetySwitchdisconnectsallungroundedDCconductorsofthecircuittowhichitisconnectedin
compliancewiththeNationalElectricCode,andspecificallyNEC690.35,whichaddressesungroundedPV
arrays.TheSafetySwitchisratedtothemaximumoperatingconditionsoftheinverter.
ThefollowingfigureillustratestheSafetySwitch.
Figure 19: Inside the Safety Switch
Grid Connection Guidelines
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 Theconduits,hubsandfittingsmustbesuitedforfieldwiringsystems.
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.
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
Connecting the AC Grid to the Safety Switch
1. Strip05⁄16''(8mm)oftheACwireinsulation.
2. InserttheACconduitintotheAC-sidedrillguidethatwasopened.
Chapter 4: Connecting the AC and the Strings to the Safety Switch
-Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.0
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