SMA Solar Technology AG
6 Electrical Connection
Installation Manual
SB13_21TL-IA-en-65
33
9.
Risk of fire due to tightening of the ESS screw
Perfect contact between the ESS and the inverter can only be guaranteed if the ESS plug
remains flexible.
• Do not tighten the screw in the plug of the ESS.
10.
Damage to the inverter due to moisture and dust penetration
If the ESS is not plugged in or incorrectly plugged in during operation, moisture and dust can
penetrate the inverter. If the ESS is not correctly plugged in, the ESS contacts may be subject to
wear, or the ESS may detach from the socket. This can result in yield loss and damage to the
ESS.
Always plug the ESS in as follows:
• Firmly plug the ESS in until it is flush with the enclosure.
• Ensure that the gap between the ESS and the enclosure is no more than 1 mm.
