SMA SMC 5000 Installation - Manual (Page 18)

Requirements for the Installation SMA Technologie AG
Page 18 SMC50_60-11:SE2006 Installation Guide
4.2 Requirements: PV-Modules
The Sunny Mini Central 5000/6000 is designed for the connection of large scales
with homogeneous structure (PV modules of the same type, same direction and slant).
The „Sunny Design“ tool will help to dimension and check the size of your strings with
respect to the inverter you intend to use. The „Sunny Design“ tool is available for
download at www.SMA.de.
The device has eight PV plug connectors (two for each string). The connecting cables
of the PV panel therefore have to be equipped with such plug connectors as well. A
connection kit for the connection of loose cable ends in a string can be purchased as
an accessory. In the following you find the SMA order numbers for the different PV
plug connectors:
• Multi-Contact 3 mm: „SWR-MC“
• Multi-Contact 4 mm: „MC-SET“
• Tyco:
„TYCO-SET“
4.3 String sizing of Sunny Mini Central PV plants
Different from the Sunny Mini Centrals you are able to connect three or more strings
in parallel to the Sunny Mini Central 5000/6000. This sounds not very critical, but a
consequence is that failures which are not harmful in string plants have to be consid-
ered in plants with big generators: Because of short circuits. See also chapter 5.3
„Reverse Current” (page 30).
4.4 Requirements: Grid 230 V (AC)
The relevant technical regulations as well as specific re-
quirements defined by the local public utility have to be
complied with. The terminals of the Sunny Mini Central
5000/6000 are suitable for cables with a cross-section
of up to 16 mm² . Their outer diameter should be between 11 mm and 25 mm. If you
choose a cable with a diameter less than 14 mm (at least 11 mm), you have to
change the rubber grommet of the connection. A smaller rubber grommet is included
in the shipping box.
The Sunny Mini Central 5000/6000 is connected with three wires (L, N, PE).
Limits for DC input
max. voltage 600 V (DC)
max. input current 26 A (DC)
The strings are connected in parallel inside the Sunny Mini Central 5000/
6000. Check if the cabling of the generator can handle high short-circuit cur-
rents. See also chapter 5.3 „Reverse Current” (page 30).
o max. 16 mm² 11 ... 25 mm