SMA SB 5000-US - Manual (Page 40)

Electrical Connection SMA America, LLC
40 SB50US-80US-IA-en-37 Installation Manual
6.3 Opening the Sunny Boy
1. Switch off all AC and DC breakers or switch-disconnectors. Ensure they cannot reconnect
accidentally.
2. Wait at least 5 minutes until the residual voltage has been drained.
3. Remove the 6 screws and conical spring washers from the enclosure lid. Pull the lid smoothly off
forwards.
☑ The Sunny Boy is open.
DANGER
High voltages are present in the Sunny Boy during operation.
Death or serious injury due to electric shock.
• Only open the Sunny Boy in the order described as follows.
NOTICE
Moisture can penetrate the open Sunny Boy
Potential damage to the Sunny Boy.
• Do not open the Sunny Boy in the event of rain or a high level of humidity (> 95 %).
• Handle the enclosure lid with care.
Damage to the seal of the enclosure lid during frost
When opening the Sunny Boy during frost, the seal of the enclosure lid can be damaged.
There may be an ingress of moisture damaging the Sunny Boy.
• Do not open the Sunny Boy when the outdoor temperature is below 23 °F ( − 5 °C).
Electrostatic discharges through touching component parts
Potential damage to the Sunny Boy.
• Ground yourself prior to touching a component part.