SMA SB 3300-11 Installation - Manual (Page 11)

SMA Solar Technology AG Safety
Installation Manual SB33-38-11-IA-en-62 11
NOTICE!
Damage to the inverter due to moisture and dust intrusion
If the Electronic Solar Switch is not plugged in or incorrectly plugged in during operation,
moisture and dust can penetrate the inverter.
If the Electronic Solar Switch is not correctly plugged in, this can cause contacts to wear in
the Electronic Solar Switch or the Electronic Solar Switch might fall down. This can result in
yield loss and damage to the Electronic Solar Switch.
Always plug in the Electronic Solar Switch as described in the following:
• Do not tighten the screw in the Electronic Solar Switch.
• Firmly plug in the Electronic Solar Switch until it is flush with the enclosure.
• Ensure that the maximum distance between the Electronic Solar Switch and the
enclosure is 1 mm.
PV array grounding
Comply with local regulations for the grounding the PV modules and of the PV array.
SMA Solar Technology AG recommends connecting the PV array frame and other
electrically conductive surfaces so that there is continuous conduction and to ground them
in order to ensure maximum protection for plants and persons.