SMA SUNNY BOY 1.5 Schnelleinstieg Seite 5

SMA Solar Technology AG
DANGER
Danger to life due to electric shock when
live components are touched on opening
the product
High voltages are present in the live parts and
cables inside the product during operation.
Touching live parts and cables results in death or
lethal injuries due to electric shock.
• Do not open the product.
DANGER
Danger to life due to electric shock when
touching live system components in case
of a ground fault
If a ground fault occurs, parts of the system may still
be live. Touching live parts and cables results in
death or lethal injuries due to electric shock.
• Disconnect the product from voltage sources
and make sure it cannot be reconnected
before working on the device.
• Touch the cables of the PV array on the
insulation only.
• Do not touch any parts of the substructure or
frame of the PV array.
• Do not connect PV strings with ground faults to
the inverter.
DANGER
Danger to life due to electric shock in
case of overvoltages and if surge
protection is missing
Overvoltages (e. g. in the event of a flash of
lightning) can be further conducted into the building
and to other connected devices in the same network
via the network cables or other data cables if there
is no surge protection. Touching live parts and
cables results in death or lethal injuries due to
electric shock.
• Ensure that all devices in the same network
are integrated in the existing overvoltage
protection.
• When laying the network cable outdoors,
ensure that there is suitable surge protection at
the network cable transition from the product
outdoors to the network inside the building.
• The Ethernet interface of the inverter is
classified as "TNV-1" and offers protection
against overvoltages of up to 1.5 kV.
Quick Reference Guide
WARNING
Danger to life due to fire or 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.
• Do not operate the DC load-break switch on
the inverter in the event of ground fault
• Disconnect the PV array from the inverter via
an external disconnection device. If there is no
disconnecting device present, wait until no
more DC power is applied to the inverter.
• Disconnect the AC circuit breaker, or keep it
disconnected in case it has already tripped,
and secure it against reconnection.
• 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).
WARNING
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.
WARNING
Danger to life due to electric shock from
destruction of the measuring device due
to overvoltage
Overvoltage can damage a measuring device and
result in voltage being present in the enclosure of
the measuring device. Touching the live enclosure of
the measuring device results in death or lethal
injuries due to electric shock.
• Only use measuring devices with a DC input
voltage range of 1000 V or higher.
SBxx-1VL-40-IS-xx-19
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