About This Manual
The manual mainly contains the product information, as well as guidelines for installation, op
eration, and maintenance. The manual does not include complete information about the pho
tovoltaic (PV) system. Readers can get additional information at www.sungrowpower.com
or on the webpage of the respective component manufacturer.
Validity
This manual is valid for the following model of low-power grid-connected PV string inverters:
• SG125CX-P2
• SG110CX-P2
• SG75CX-P2
It will be referred to as "inverter" hereinafter unless otherwise specified.
Target Group
This manual is intended for professional technicians who are responsible for installation, op
eration, and maintenance of inverters, and users who need to check inverter parameters.
The inverter must only be installed by professional technicians. The professional technician is
required to meet the following requirements:
• Know electronic, electrical wiring and mechanical expertise, and be familiar with electrical
and mechanical schematics.
• Have received professional training related to the installation and commissioning of elec
trical equipment.
• Be able to quickly respond to hazards or emergencies that occur during installation and
commissioning.
• Be familiar with local standards and relevant safety regulations of electrical systems.
• Read this manual thoroughly and understand the safety instructions related to operations.
How to Use This Manual
Please read this manual carefully before using the product and keep it properly at a place for
easy access.
All contents, pictures, marks, and symbols in this manual are owned by SUNGROW. No part
of this document may be reprinted by the non-internal staff of SUNGROW without written au
thorization.
Contents of this manual may be periodically updated or revised, and the actual product pur
chased shall prevail. Users can obtain the latest manual from support.sungrowpower.com
or sales channels.
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