SolarEdge SE66.6KUS Installation Manual page 18

1. Determine the power optimiser mounting location and use the power optimiser
mounting brackets to attach the power optimiser to the support structure (See
Figure 5). It is recommended to mount the power optimiser in a location protected
from direct sunlight. For frame-mounted power optimisers follow the instructions
supplied with the optimisers, or refer to
https://www.solaredge.com/sites/default/files/installing_frame_mounted_power_
optimizers.pdf.
2. If required, mark the mounting hole locations and drill the hole.
CAUTION!
Drilling vibrations may damage the power optimiser and will void the warranty. Use a torque wrench
or an electric drill with adjustable clutch that meets the mounting torque requirements. Do not use
impact drivers for mounting the power optimiser.
Do not drill through the power optimiser or through the mounting holes.
ATTENTION!
Les vibrations résultant du perçage peuvent endommager l'optimiseur de puissance et annulera la
garantie. Utilisez une clé dynamométrique ou une perceuse électrique avec embrayage adaptable
compatible avec les moments indiqués. Ne pas utiliser des tournevis à percussion pour fixer
l'optimiseur. Ne pas percer à travers l'optimiseur de puissance ou ses trous de fixation.
3. Attach each power optimiser to the rack using M6 (1/4'') stainless steel bolts, nuts and washers or
other appropriate mounting hardware. A pply torque of 9-10 N*m / 6.5-7 lb*ft.
For 3NA series power optimizes, SolarEdge recommends mounting the power optimiser on a rail with
the smooth side facing out, so that the power optimiser body will prevent its rotation.
4. Use the following methods
WARNING!
The metallic enclosure of the power optimiser 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
l
washer between the railing and the flat side of the mounting bracket. T he 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 5.
1 These methods have been evaluated by a nationally recognized testing laboratory as part of the optimiser 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 Installation MAN-01-00402-1.4
1
to ground the power optimizer:
Chapter 2: Installing the Power Optimisers
17