1. INTRODUCTION
1.1 Recipients
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4
LEAF Spa reserves the right to change the information in this manual without notice: check the website www.leaf-eng.com for
latest updates.
Please retain a copy of this manual for future reference.
This manual is intended for professional installers and personnel responsible for the installation and commissioning of the
photovoltaic system.
Installation and maintenance personnel of the photovoltaic system should be trained to specific regulations of the country in
which the plant is realized and should be aware of all the security procedures provided by law
.
1.3 Safety notes
The LEAF Microinverter M500-S is equipped with an isolation transformer between the PV side and the grid network, with
insulation of reinforced type.
Before installing and using any LEAF Microinverter M500-S, be sure to have read and fully understood the instructions provided
in this manual.
1.2 Conventions used in this manual
This manual uses the following symbols and conventions, which should be noted and followed scrupulously.
DANGER
Indicating unsafe practices that could result in death or serious injury if not performed correctly.
WARNING
It is used to indicate operations that may affect the proper functioning of the device.
HOT SURFACE
It indicates operations that may cause burns and serious damage in case of contact with hot surfaces.
NOTE
It is used to highlight particular requirements of the installation process.
Technical Details of LEAF Microinverter 500-S
Environmental category: Outdoor Use
Pollution Degree: Pollution Degree 3
Degree of protection: IP65
Ambient temperature range of -40 ° C to +65 ° C
Relative Humidity 4% to 100%
Overvoltage category - side DC input: Overvoltage II
Overvoltage category - side AC output: Overvoltage III
Do not use the LEAF Microinverter M500-S in a manner not specified by the manufacturer.
Carefully read the instructions in this manual before proceeding with the installation of the LEAF Microinverter M500-S
and the PV system.
The DC leads of the photovoltaic system are not connected to the ground and may be energized.
The installation and/or replacement of LEAF Microinverter M500-S should be performed only by qualified personnel.
All parts of the PV system must be implemented in compliance with local and national regulations on electrical systems.
All parts of the plant must be kept dry before and during the connection and the installation.
Lightning Protection
To avoid voltages induced by lightning, the wiring of the PV must be placed as a derivation of radial or single type: Do
not use closed loop electrical circuits, which could trigger unwanted antenna effects.
According to local and national standards, additional active protections against lightning strikes may be required
Insulation of the AC wiring
The AC wiring coming from the microinverter must ensure electrical isolation from the mains (for example by means of
APPENDIX
