SolarEdge SE7600A-US, Installation Manual

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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 2 .
Figure 2: Power optimizer installation and grounding using a star washer
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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 3
Figure 3: Power optimizer installation and grounding using a grounding plate
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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 4
SolarEdge - StorEdge Installation Guide MAN-01-00262-1.3
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Step 1: Mounting and Grounding the Power Optimizers