SMA SC 500HE-US - Manual (Page 13)

SMA America, LLC 2 Safety
Operating Manual SC500HEUS-eng-BE-BUS120320 13
2 Safety
2.1 Intended Use
The Sunny Central is a central inverter that converts direct current generated by the PV modules into
alternating current when the DC input voltage is in the 330 V to 600 V range, and when the
permissible ambient conditions are adhered to. The alternating current that is generated is fed into the
power distribution grid by a transformer that is connected in series.
The inverter may be used both indoors and outdoors. The inverter may only be operated with a
suitable transformer, taking into consideration the maximum permissible DC input voltage and the
permissible ambient temperatures (see Technical information "Transformer Requirements -
requirements of medium-voltage and auxiliary transformers for SUNNY CENTRAL 500HE-US /
SUNNY CENTRAL 500HE-CA" and the installation manual of the inverter). The transformer must be
designed for the voltages that arise during pulsed mode of the inverter.
The inverter corresponds to the protection class NEMA 3R and can also be operated in rain, sleet,
and snow.
Only persons meeting all of the skills standards for the target group may work on or with the
Sunny Central.
For intended use, please also read the product documentation and observe all safety precautions.
All work on the Sunny Central must be performed with the appropriate tools.
Suitable personal protective equipment according to specifications from NFPA 70E is to be worn by
all persons working on or with the Sunny Central.
Unauthorized persons may not operate the Sunny Central and must keep at a distance from the
Sunny Central.
For safety reasons, it is forbidden to modify the product or install components that are not explicitly
recommended or distributed by SMA for this product.
The Sunny Central may not be operated with its doors open.
The Sunny Central may not be opened when it is raining or when humidity exceeds 95%.
The Sunny Central may not be operated if there are any technical defects.
Any use of the Sunny Central other than that described in the Intended Use section is not regarded as
intended use. Unauthorized installations and modifications compromise operational safety and void
the operation permission as well as all warranty claims.
2.2 Qualification of Skilled Workers
Qualified skilled workers have been adequately trained and have demonstrated the ability and
knowledge to fit, operate, and perform maintenance on the device.
Qualified skilled workers have been trained in how to deal with the dangers and risks associated with
fitting electrical installations and have all the necessary knowledge for averting danger.