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MI-300N/MI-350N/MI-400N
*Note: For some countries the DTU will be required to meet the local grid regulation (e.g. G98/99 for UK etc.)
5.3 Space Distance Required
If the microinverters are installed on a concrete roof or steel roof, the communication with the DTU
may be slightly affected. Under such installation conditions, it is better for the microinverters to be
installed 50cm above the roof. Otherwise, more DTUs may be required to ensure the communication
quality between the DTUs and the microinverters.
5.4 Preparation
Installation of the equipment is carried out based on the system design and the place in which the
equipment is installed.
The installation must be carried out with the equipment disconnected from the grid (power
disconnect switch open) and with the photovoltaic modules shaded or isolated.
Referring to the Technical Data to make sure the environmental conditions fit the
microinverter’s requirement (degree of protection, temperature, humidity, altitude, etc.)