2 Safety
CAUTION
Risk of burns due to hot enclosure
parts
The enclosure and the enclosure lid may get
hot during operation. The DC load-break
switch can not become hot.
• Do not touch hot surfaces.
• Wait until the inverter has cooled down
before touching the enclosure or
enclosure lid.
CAUTION
Risk of injury due to weight of
product
Injuries may result if the product is lifted
incorrectly or dropped while being
transported or mounted.
• Carry and lift the product upright with
the help of several people. Take the
weight and the center of gravity of the
product into account. The center of
gravity is on the side of the AC-
Connection Unit.
• Wear suitable personal protective
equipment for all work on the product.
• Transport the product using the
carrying handles or hoist. Take the
weight of the product into account.
• Use all carrying handles provided
during transport with carrying handles.
• Do not use the carrying handles as
attachment points for hoist equipment
(e.g. straps, ropes, chains). Insert eye
bolts into threads provided on top of
the product to attach the hoist system.
8
STP50-41-IS-xx-21
SMA Solar Technology AG
NOTICE
Damage to the enclosure seal in
subfreezing conditions
If you open the product when temperatures
are below freezing, the enclosure seals can
be damaged. Moisture can penetrate the
product and damage it.
• Only open the product if the ambient
temperature is not below -5°C.
• If a layer of ice has formed on the
enclosure seal when temperatures are
below freezing, remove it prior to
opening the product (e.g. by melting
the ice with warm air).
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 product if the humidity is
within the thresholds and the
environment is free of sand and dust.
• Do not open the product during a dust
storm or precipitation.
• Close tightly all enclosure openings.
NOTICE
Damage to the inverter due to
electrostatic discharge
Touching electronic components can cause
damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any
component.
Quick Reference Guide