2 Safety
SMA Solar Technology AG
18
STPS60-IA-xx-13
Installation Manual
Danger to life due to electric shock when live
components or DC cables are touched
The DC cables connected to a battery may be live.
Touching live DC cables results in death or serious injury
due to electric shock.
• Disconnect the product and battery from voltage
sources and make sure it cannot be reconnected
before working on the device.
• Wait five minutes before working on the inverter.
• Observe all safety information of the battery
manufacturer.
• Do not touch non-insulated parts or cables.
• Wear suitable personal protective equipment for all
work on the product.
• If an error occurs, have it rectified by qualified
persons only.
Danger to life due to fire and explosion
In rare cases, an explosive gas mixture can be generated
inside the inverter under fault conditions. In this state,
switching operations can cause a fire inside the inverter or
explosion. Death or lethal injuries due to hot or flying
debris can result.
• In the event of a fault, do not perform any direct
actions on the inverter.
• Ensure that unauthorized persons have no access to
the inverter.
• Disconnect the AC circuit breaker and secure against
reconnection.
• Disconnect the battery from the product via an
external disconnection device. Do not operate the
DC load-break switch on the product.
• Only perform work on the inverter (e.g.
troubleshooting, repair work) when wearing
personal protective equipment for handling of
hazardous substances (e.g. safety gloves, eye and
face protection, respiratory protection).
Danger due to ground fault on DC side during
operation
Due to the transformerless topology of the product, the
occurrence of ground faults on DC side during operation
can lead to irreparable damage. Damages to the product
due to a faulty or damaged DC installation are not
covered by warranty. The product is equipped with a
protective device that checks whether a ground fault is
present during the starting sequence. The product is not
protected during operation.
• Ensure that the DC installation is carried out correctly
and no ground fault occurs during operation.
Risk of injury due to toxic substances, gases and
dusts.
In rare cases, damages to electronic components can
result in the formation of toxic substances, gases or dusts
inside the inverter. Touching toxic substances and inhaling
toxic gases and dusts can cause skin irritation, burns or
poisoning, trouble breathing and nausea.
• Only perform work on the inverter (e.g.
troubleshooting, repair work) when wearing
personal protective equipment for handling of
hazardous substances (e.g. safety gloves, eye and
face protection, respiratory protection).
• Ensure that unauthorized persons have no access to
the inverter.
Danger to life due to burns caused by electric arcs
through short-circuit currents
Short-circuit currents in the battery can cause heat build-up
and electric arcs. Heat build-up and electric arcs may
result in lethal injuries due to burns.
• Prior to any work, disconnect the battery from the
product via an external disconnection device.
• Observe all safety information of the battery
manufacturer.
