2 Safety
SMA Solar Technology AG
Operating manual MC-BOX-6-3-BE-en-30 7
2 Safety
2.1 Intended Use
The Multicluster-Box is the main AC distribution board in a multicluster system. The multicluster
system forms an AC grid and is made up of a maximum of 2 clusters (each three-phase).
Do not exceed the maximum AC connection power of the Multicluster-Box. Cables with copper
conductors must be used for the installation.
The Multicluster-Box is designed for connection to TN-S- systems.
The Multicluster-Box must only be operated in conjunction with Sunny Island 6.0H (SI6.0H-13 /
SI6.0H-12) or Sunny Island 8.0H (SI8.0H-13 / SI8.0H-12). Always take the maximum AC
connection power and the permitted inverter combinations into account.
In terms of interference immunity, the product is suitable for EMC environment A, and in terms of
EMC emissions, it is suitable for EMC environment B (as per IEC 61439-1:2011).
The product is designed for indoor use only.
Only operate the product at temperatures between −-25°C and +60°C.
The Multicluster-Box is designed for use at altitudes of up to 2000 m above Mean Sea Level. If you
would like to use the Multicluster-Box at altitudes above 2000 m, contact Service (see Section14,
page36).
Use SMA products only in accordance with the information provided in the enclosed
documentation and with the locally applicable laws, regulations, standards and directives. Any
other application may cause personal injury or property damage.
Alterations to the SMA products, e.g., changes or modifications, are only permitted with the express
written permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and
warranty claims and in most cases terminate the operating license. SMA Solar Technology AG
shall not be held liable for any damage caused by such changes.
Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient, dry place for future reference and observe all instructions contained therein.
This document does not replace and is not intended to replace any local, state, provincial, federal
or national laws, regulations or codes applicable to the installation, electrical safety and use of the
product. SMA Solar Technology AG assumes no responsibility for the compliance or non-
compliance with such laws or codes in connection with the installation of the product.
The type label must remain permanently attached to the product.
2.2 IMPORTANT SAFETY INSTRUCTIONS
Keep the manual for future reference.
This section contains safety information that must be observed at all times when working.
The product has been designed and tested in accordance with international safety requirements. As
with all electrical or electronical devices, there are residual risks despite careful construction. To
prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
