SolarEdge SE66.6KUS - Page 19

Figure 5: Power optimiser 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 optimiser 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optimisertotheframeandthe
groundingterminalscrew.Applytorqueof9.5N*m/7lb*ft.SeeFigure7
Figure 7: Power optimiser grounding terminal
5. Verifythateachpoweroptimiserissecurelyattachedtothemodulesupportstructure.
-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.4
18
Step 1: Mounting and Grounding the Power Optimizers