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1. INTRODUCTION

1.1 Recipients

13

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

Содержание M500-S

Страница 1: ...MICROINVERTER M500 S Installation Manual...

Страница 2: ...November 2014 Copyright LEAF SpA...

Страница 3: ...ting the AC BUS 4 2 1 Connection without WIELAND distribution units 4 2 2 Connection with WIELAND distribution unit 4 3 Connecting to the PV panels 4 4 Connecting the AC distribution network Grid 9 9...

Страница 4: ...t 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 particul...

Страница 5: ...nd connection of the metal housing when required by the rules of installation of the photovoltaic system must be carried out through the appropriate threaded socket marked with the grounding symbol an...

Страница 6: ...the microinverter may cause a voltage drop of a value such as to impair the connection to the distribution network to ensure the efficient operation of the system the voltage drop in the AC wiring ha...

Страница 7: ...l inform the client about the best suited configuration based on the system architecture and clients needs Each microinverter is an independent production unit safe and efficient it can then be instal...

Страница 8: ...nected to the distribution network through the protective equipment defined by local regulations WARNING If exposed to sunlight the solar modules will always exhibit DC voltage at their electrical ter...

Страница 9: ...sequence of operations Connecting the AC bus of the PV system at all the LEAF M500 S microinverters Connecting all the LEAF M500 S microinverters to their respective panel or to the pair of solar pane...

Страница 10: ...n cables up to 3 AC lines from microinverters and up to 2 cables for connecting to the distribution network As depicted in fig 4 3 and 4 4 several arrangements are possible when more distributors are...

Страница 11: ...ed in series as shown in figure 4 5 Plug the DC connectors until the latch The DC connectors between the photovoltaic module and the LEAF Microinverter M500 S must not be opened during operation of th...

Страница 12: ...rk through the protective equipment defined by local regulations All the parts of the plant must be kept dry before and during installation and connection 5 REMOVING A LEAF MICROINVERTER M500 S Isolat...

Страница 13: ...re grounding Grounding is ensured by the dedicated conductor on the AC side its connection should be performed based on natio nal laws for grounding wires The use of the ground connection of the metal...

Страница 14: ...IN 1 INSTALLATION MAP CLIENT DATA INSTALLER DATA ORIENTATION Insert geographical orientation and roof slope Company 4 3 Roof section N ___ A Te In 2 5 14 Address City Company Address City...

Страница 15: ...nge 48 3 48 3 nominal power Low Voltage Fault Ride Through LVFRT Yes Max Output Fault Current 5 6 A Internal Input Transient Overvoltage Protection Yes Max Units per Branch Circuit 9 15 for 20 32A bre...

Страница 16: ...ntries across the globe The mission of VeNetWork is to promote business culture via the funding and development of new manufacturing companies and service providers that will generate economic profess...

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