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.
• M70A
_260
• M50A
_260
2
Introduction
2.1 Valid Model
- This product utilizes a transformerless design, and is not provisioned with an
isolation transformer, and therefore has no galvanic isolation between the DC
and AC sides.
PV array circuits connected must be floating with respect to ground, i.e., must
not be referenced (bonded) to ground.
If grounded PV arrays are connected to the inverter, the inverter will not connect
to the grid and the error message INSULATION (E34) will appear.
- It is prohibited to connect terminals L1, L2, L3 or N to ground.
M70A
_260
/ M50A
_260
transformerless 3Ø PV inverters are designed to enable
the highest levels of efficiency and provide longest operating life by use of
state-of-the-art high frequency and low EMI switchmode technology. It is suitable
for outdoor use.
ATTENTION : NO GALVANIC ISOLATION
Introduction
12
Содержание M50A 260
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