2 Introduction; Valid Model - Delta M15A-220 Operation And Installation Manual

Introduction
2 Introduction
M15A_220 / M20A_220 is designed to enable the highest levels of efficiency
and provide longest operating life of transformerless three-phase PV inverter by
state-of-the-art high-frequency and low EMI technology. It is suitable for outdoor use.
- The inverter is not equipped with a transformer and has no galvanic isolation.
- Do not operate with grounding PV modules.
- It is prohibited to connect L1, L2, L3 and N terminal to ground.

2.1 Valid Model

The user manual is valid for the following device types:
• M15A_220
• M20A_220
This user manual must be followed during installation, operation, and maintenance.
DELTA reserves the right to make modifications to the content and technical data
in this user manual without prior notice.
ATTENTION : NO GALVANIC ISOLATION
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