ENGLISH
INTENDED USE
The Sunny Boy is a transformerless PV inverter with two MPP trackers which converts the direct current of the PV
array into grid-compliant alternating current and feeds it into the utility grid.
The product is suitable for indoor and outdoor use.
The product must only be operated with PV arrays of protection class II in accordance with IEC 61730,
application class A. The PV modules must be suitable for use with this product.
PV modules with a large capacity to ground must only be used if their coupling capacity does not exceed 1.4 μF
(for information on how to calculate the coupling capacity, see the Technical Information "Leading Leakage
Currents" at www.SMA-Solar.com).
All components must remain within their permitted operating ranges at all times. The product must only be used in
countries for which it is approved or released by SMA Solar Technology AG and the grid operator.
Use this product only in accordance with the information provided in the enclosed documentation and with
the locally applicable standards and directives. Any other application may cause personal injury or property
damage.
Alterations to the product, e.g. modifications or conversions, are only permitted with the express written
permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and
usually void the operation permit. SMA Solar Technology AG shall not be held liable for any damage caused by
such alterations.
Any use of the product other than that described in the Intended Use section does not qualify as appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for
future reference and observe all instructions contained therein.
The type label must remain permanently attached to the product.
SYMBOLS
Notice
This symbol indicates general dangers. In this case, it indicates that the inverter must be
additionally grounded or that equipotential bonding is required locally.
Danger to life due to electric shock
The inverter operates at high voltages. Prior to performing any work on the inverter, disconnect
it from voltage sources. All work on the inverter must only be carried out by electrically qualified
persons.
Risk of burns due to hot surfaces
The inverter can get hot during operation. Avoid contact during operation. Allow the inverter to
cool down sufficiently before carrying out any work.
Reading the SUNCLIX manual
Reference to detailed information in the installation manual of the DC connectors (see scope of
delivery or www.SMA-Solar.com)
Tapping once: switching on the display light, switching to the next text line
Tapping twice: displaying all messages of the start-up phase (e.g. serial number, firmware version)
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SB3-5TL-21-IS-xx-11