Delta M15A 220, Operation And Installation Manual

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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 user manual is valid for the following device types:
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.
• M15A_220
• M20A_220
2 Introduction
2.1 Valid Model
- 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.
ATTENTION : NO GALVANIC ISOLATION
Introduction
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