2 Safety SMA Solar Technology AG
8 SB13_21TL-IA-en-65 Installation Manual
2 Safety
2.1 Appropriate Usage
The Sunny Boy is a transformerless PV inverter which converts the direct current of the PV array to
grid-compliant alternating current and feeds it into the electricity grid.
The product is suitable for indoor and outdoor use.
The inverter must only be operated with PV arrays of protection class II, in accordance with
IEC 61730, application class A. The PV modules used must be suitable for use with this inverter and
must be approved by the module manufacturer.
It is only permissible to use PV modules with large capacities to earth providing that their coupling
capacity does not exceed 1.4 μF.
All components must remain within their permitted operating ranges at all times.
Use this product only in accordance with the information provided in the enclosed documentation and
with the locally applicable standards and guidelines. Any other use may result in personal injury or
property damage.
The product should only be used in countries for which it is licensed or for which it is released by
SMA Solar Technology AG and the network operator.
• Do not mount the product on flammable construction materials.
• Do not mount the product in areas where highly flammable materials are stored.
• Do not install the product in potentially explosive atmospheres.
For safety reasons, it is not permitted to modify the product or install components that are not explicitly
recommended or distributed by SMA Solar Technology AG for this product.
The enclosed documentation is an integral part of this product.
• Read and observe the documentation.
• Keep the documentation in a convenient place for future reference.
2.2 Qualifications of Skilled Persons
The work described in this document must be performed by skilled persons only. Skilled persons must
have the following qualifications:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using electrical
devices and plants
• Training in the installation and commissioning of electrical devices and plants
• Knowledge of the applicable standards and guidelines
• Knowledge of and compliance with this document and all the safety precautions.
