Installation Guide


l For mounting on a grounded metal rail:Usetheprovided5/16''stainlesssteelgroundingstar
washerbetweentherailingandtheflatsideofthemountingbracket.Thegroundingwasher
shouldbreakthroughtheanodizecoatingoftherailingtoensurelowresistiveconnection.Apply
torqueof9.5N*m/7lb*ft.SeeFigure5.
Figure 5: Power optimizer installation and grounding using a star washer
l For mounting on rails with sliding nut fasteners:Ifthestarwashercannotbeused,usethe
SolarEdgegroundingplate(purchasedseparately)betweentherailingandtheflatsideofthe
mountingbracket.Usemountingspecifichardwareasneeded.Applytorqueof9.5N*m/7lb*ft.
SeeFigure6
Figure 6: Power optimizer installation and grounding using a grounding plate
l For mounting on un-grounded structures(suchasawoodenstructure):Ifthestarwasheror
theplatecannotbeused,usetheSolarEdgegroundinglug(purchasedseparately)withan
equipment-groundingconductoraccordingtothesuppliedinstructions.Thegroundingterminal
acceptsawiresizeof6-14AWG,andmustbesizedforequipmentgroundingperNEC250.122
requirements.Tightenthescrewsconnectingthepoweroptimizertotheframeandthe
groundingterminalscrew.Applytorqueof9.5N*m/7lb*ft.SeeFigure7
-Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.0
18
Step 1: Mounting and Grounding the Power Optimizers