SolarEdge SE K Series Installation Manual page 29

28 Step 1: Mounting and Grounding the Power Optimizers
4. Use the following methods to ground the Power Optimizer:
WARNING!
The metallic enclosure of the Power Optimizer must be grounded in
accordance with the requirements of the local and national codes.
AVERTISSEMENT!
L'enceinte métallique de l'optimiseur de puissance doit être mise à la terre
en accord avec les régulations locales et nationales.
For mounting on a grounded metal rail: Use SolarEdge approved 5/16''
stainless steel grounding star washer between the railing and the flat side of the
mounting bracket.
NOTE!
Star washers for the S-series optimizer are not included and may be
purchased in bulk (SolarEdge part number OPT-Washer-100 or OPT-
Washer-500).
The star washer (used for grounding) should break through the anodize coating
of the railing to ensure low resistive connection. Apply a torque of 9.5 N*m / 7
lb*ft.
Figure 4: Power Optimizer installation and grounding using a star washer
Three Phase Inverters with Synergy Technology PN: SExxK-xxxxIxxxx