SMA SB 2000HF-US - Manual (Page 20)

Maintenance and Cleaning SMA America, LLC
20 HF_STP_US-BUS095110 User Manual
5.3 Checking the SMA DC Disconnect
When used appropriatly the SMA DC Disconnect does not need maintenance.
It is recommended, though not compulsory to:
• Check the SMA DC Disconnect regularly.
• Operate the SMA DC Disconnect once a year 10 times.
Operating the switch will clean the contacts of the SMA DC Disconnect.