Damage to seals on the enclosure lids in subfreezing conditions
If you open the enclosure lid of the Connection Unit when temperatures are below freezing, the enclosure lid seal
could be damaged. As a result, moisture can get into the Connection Unit.
• Only open the enclosure lid of the Connection Unit if the ambient temperature is at least 0°C (32°F) and there
is no frost.
• If the enclosure lid of the Connection Unit has to be opened at temperatures below freezing, any ice formation
on the seal has to be removed (e.g by melting it with warm air) before the opening of the enclosure lid.
Observe the applicable safety regulations.
Damage to the inverter or product due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter or the product through electrostatic
discharge.
• Ground yourself before touching any component.
Electrical installations
All electrical installations must be carried out in accordance with the local standards and the
National Electrical
Code
®
ANSI/NFPA 70 or the
Canadian Electrical Code
®
CSA C22.1.
• Before connecting the inverter to the utility grid, contact your local grid operator. The electrical connection of
the inverter must be carried out by qualified persons only.
• Ensure that no cables used for electrical connection are damaged.
2.3
Supported Products
The Antenna Extension Kit must only be installed in the following SMA inverters:
• SB3.0-1SP-US-40 (Sunny Boy 3.0-US)
• SB3.8-1SP-US-40 (Sunny Boy 3.8-US)
• SB5.0-1SP-US-40 (Sunny Boy 5.0-US)
• SB6.0-1SP-US-40 (Sunny Boy 6.0-US)
• SB7.0-1SP-US-40 (Sunny Boy 7.0-US)
• SB7.7-1SP-US-40 (Sunny Boy 7.7-US)
2 Safety
SMA Solar Technology America LLC
Installation Manual
EXTANT-US-40-IA-en-11
10