SMA SB Series - Safety Notices; Notice: Damage to Enclosure Seal; Notice: Sand, Dust, Moisture Ingress; Notice: Destruction due to Overvoltage

2 Safety
SMA Solar Technology AG
Replacement Manual SBxx-1SP-US-41-PU-RM-xx-10 7
NOTICE
Damage to the enclosure seal in subfreezing conditions
If you open the inverter when temperatures are below freezing, the enclosure seals can be
damaged. This can lead to moisture entering the inverter.
• Only open the inverter if the ambient temperature is not below 0°C (32°F).
• If a layer of ice has formed on the enclosure seal when temperatures are below freezing,
remove it prior to opening the inverter (e.g. by melting the ice with warm air). Observe the
applicable safety regulations.
NOTICE
Damage to the product due to sand, dust and moisture ingress
Sand, dust and moisture penetration can damage the product and impair its functionality.
• Only open the inverter if the humidity is within the thresholds and the environment is free of
sand and dust.
• Do not open the inverter during a dust storm or precipitation.
• Only disassemble the PowerUnit if a new PowerUnit is already available.
NOTICE
Destruction of the measuring device due to overvoltage
• Only use measuring devices with a DC input voltage range of 600V or higher.
Observe superordinate standards
The repair work on devices and the consideration and application of other standards which
correspond to a superordinate standard is the responsibility of the qualified person performing
the work. Unauthorized alterations will void guarantee and warranty claims and in most cases
terminate the operating license. SMA Solar Technology AG shall not be held liable for any
damage caused by such changes.
ENGLISH