SolarEdge SEK-I Series Installation Manual page 24

4. Use the following methods
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 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 a torque of 7 lb*ft.
Figure 4: Power Optimizer installation and grounding using a star washer
(1) These methods have been evaluated by a nationally recognized testing laboratory as part of the Power
Optimizer evaluation. The SolarEdge-supplied grounding lug kit has been evaluated only for use with
SolarEdge power optimizers. It is not intended or listed to be used as a general purpose grounding lug with
other electrical equipment.
Three Phase Inverter with Synergy Technology P/N: SExxK-xxxxIxxxx SExxK-xxxxIxxxx
Chapter 2: Installing the Power Optimizers
(1)
to ground the Power Optimizer:
23