SMA Solar Technology AG
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.
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.
• Close tightly all enclosure openings.
• Only use listed rain-tight or liquid-tight conduit fittings to attach the conduits to the product.
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 (for North America)
All installations must conform with the laws, regulations, codes and standards applicable in the
jurisdiction of installation (e.g. National Electrical Code
®
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 the cables or conductors used for electrical connection are not damaged.
Quick Reference Guide
NOTICE
NOTICE
NOTICE
®
ANSI/NFPA 70 or Canadian
MD485-US-40-IS-xx-12
2 Safety
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