SMA Solar Technology AG
6
STP60-JP-10-IA-en-11
Installation Manual
INFORMATION
The PV load-break switch can be secured in the "Off"
position using a padlock.
DC voltages up to 1000 V are present in a PV system
even when the inverter is disconnected from the utility grid.
Faults or inappropriate use may lead to electric arcing.
MAINTENANCE AND MODIFICATION
Only authorized personnel are permitted to repair or
modify the inverter. To ensure personal safety, use only
original spare parts available from the supplier.
INSTALLER
Input and output circuits are isolated from the enclosure.
System grounding is the responsibility of the installer.
RISK OF ELECTRIC SHOCK
This manual is intended for use by qualified personnel
only. To reduce the risk of electric shock, do not perform
any maintenance work other than that specified in the
manual unless you are qualified to do so.
The inverter is not equipped with a transformer and is
intended to be installed with an ungrounded (floating) PV
array.
Input and output circuits are isolated from the enclosure.
System grounding is the responsibility of the installer.
All persons responsible for the installation and
maintenance of inverters must be:
• Trained and authorized in general safety rules for
work on electric equipment.
• Familiar with local requirements, rules and
regulations for the installation.
The inverter does not provide overcurrent protection. This
must be provided by the installer. See Table 5.8
The temperature of the cooling elements and components
in the inverter can exceed 70°C. There is a risk of burns.
The inverter is to be installed in such way that hot
components cannot be touched.
Damage to the inverter due to ground fault on DC
side during operation
Due to the transform erless 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.
Damage to the product due to outgassing of
sealants
Sealants such as silicone, polyurethane foam or sealing
foam can outgas. Outgassing of sealants can damage the
product and impair its functionality.
• Do not use any sealants for sealing.
• Only use the provided material for sealing.
INFORMATION
The symbol for grounding conductors used in this
manual is identified in figure 2.18.
An illustration of the DC disconnector can be found in
Section 3.2.2, page 22.
