Disconnecting The Sunny String-Monitor - SMA SUNNY STRING-MONITOR Technical Description

SMA Solar Technology AG
6.3 Disconnecting the Sunny String-Monitor
Risk of lethal electric shock.
• Observe the following safety rules when disconnecting:
– Disconnect
– Ensure that the device cannot be reconnected
– Ensure that no voltage or current is present
– Cover or isolate adjacent live elements
Risk of lethal electric shock. The discharge time of the capacitors is longer than 5 minutes.
• After disconnection, wait until the capacitors have discharged.
Danger of burns by touching hot components.
• Wear safety gloves during all work on the device.
1. If there is a DC circuit breaker on the Sunny String-Monitor, disconnect it. This way the Sunny
String-Monitor is free of current and voltage.
2. If there is no DC circuit breaker, disconnect the Sunny Central (see the installation manual for
the Sunny Central).
3. Remove the fuses in the Sunny Central.
4. If there are no fuses in the Sunny Central, remove the fuses in the DC main distributor (e.g.,
Sunny Main Box).
5. Cover the modules.
6. Disconnect all solar plugs.
Technical Description
6 Commissioning
SSM-TEN103132 39