Installation Manual

3. AttacheachpoweroptimizertotherackusingtheM6(1/4'')stainlesssteelbolts,nutsandwashers.
Applytorqueof9.5N*m/7lb*ft.For3NAseriespoweroptimizes,SolarEdgerecommendsmounting
thepoweroptimizeronarailwiththesmoothsidefacingout,sothatthepoweroptimizerbodywill
preventitsrotation.
4.
Usethefollowingmethodstogroundthepoweroptimizer
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:
WARNING!
The metallic enclosure of the power optimizer must be grounded in accordance with the
requirements of the local and national codes.
L'enceinte métallique de l’optimiseur de puissance doit être mise à la terre en accord avec les
régulations locales et nationales.
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.
Figure 2: 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.Applytorqueof9.5N*m/7lb*ft.
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For a list of racking models and their appropriate grounding method, refer to
http://www.solaredge.us/files/pdfs/grounding_se_power_optimizers.pdf.
Chapter 2: Installing the Power Optimizers
SolarEdge-StorEdge Installation Guide MAN-01-00262-1.0
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Figure 3: Power optimizer installation and grounding using a grounding plate