Security; Appropriate Usage - SMA SUNNY MINI CENTRAL 6000TL Installation Manual

SMA Solar Technology AG

Security

2 Security
2.1 Appropriate Usage
The Sunny Mini Central is a PV inverter that converts the DC current of solar cells to AC current and
feeds it into the public grid.
Principle of a PV System with the Sunny Mini Central
The Sunny Mini Central may only be operated with solar generators (modules and cabling) of
protection class II.
PV modules with large capacities relative to ground, such as thin-film modules with cells on a metallic
substrate, are therefore only to be implemented if their coupling capacity is below 50 nF/kWp.
During grid feeding, a leakage current flows from the cells to the earth. The magnitude of this current
depends on the manner in which the modules are installed and, to no small extent, on the weather
(rain, snow). This operational leakage current is not to exceed 50 mA.
When planning the PV system, ensure that the values comply with the permitted operating range of all
components at all times. The free design program "Sunny Design" (www.SMA.de/en/SunnyDesign) will
assist you in this. The manufacturer of the PV modules must have approved the modules for use with this
Sunny Mini Central unit. You must also ensure that all measures recommended by the module
manufacturer for long-term maintenance of the module properties are taken (see also "Module
Technology" technical information, in the download area of www.SMA.de/en).
Another use of the Sunny Mini Central as well as unauthorized installations or modifications can
compromise the operating safety and void the warranty claims and the operation permission.
Installation Guide SMC6-8TL-IEN093231 9