SMA SMB User Manual
Page 9

SMA Solar Technology AG
2 Safety
Installation Manual
SMB-IA-en-10
9
If the Sunny Main Box or Sunny Main Box Cabinet is operated in a damaged condition, there is a
risk of serious injury by electric shock.
• Only use the Sunny Main Box or Sunny Main Box Cabinet when it is in perfect working order
and can be operated safely.
• Regularly check the Sunny Main Box or Sunny Main Box Cabinet for visible damage.
• Ensure that all external safety equipment is freely accessible at all times and that regular checks
are carried out to ensure that it is fully functional.
Burn Hazards
Some device components such as fuses can get hot during operation.
• Wear safety gloves when working on the device.
Damage to the Sunny Main Box or Sunny Main Box Cabinet
If unauthorised persons interfere with the Sunny Main Box, Sunny Main Box Cabinet or PV plant, the
equipment could be damaged.
• Lock the devices once they have been put into operation.
• Remove the keys from the door locks.
• Store the keys in a safe place.
When closed, the Sunny Main Box and Sunny Main Box Cabinet correspond to International
Protection Rating 54 and are thus protected from intrusion of dust and water. Penetrating moisture can
damage the Sunny Main Box or Sunny Main Box Cabinet.
• Do not perform any installation work in rainy or foggy conditions, or when humidity is over 95%.
• After completion of work on the Sunny Main Box or Sunny Main Box Cabinet, lock the doors
again.