5.1 INVOLAR MAC250Micro-Inverter operational environment
Temperature
INVOLAR MAC250 Micro-Inverter full power operation ambient temperature:
40°C~﹢65°C
Humidity
Air humidity≤90%。
Storage
If the INVOLAR MAC250 Micro-Inverter had been stored for 2 years, the inverter
need pretreatment. The way of pretreatment is input 85% rated voltage under the
condition of no output power for 30 minutes.
5.2 INVOLAR MAC250 Micro-Inverter operational condition in PV System
PV Module
The max PV Module open circuit voltage is no more than 50V.
The range of PV Module output power is 180W-250W.
Connection to the electrical utility grid
Connect the INVOLAR Micro-Inverter to the electrical utility grid only after receiving
prior approval from the utility company. It should match the on-grid conditions:
5-1 Parameter of power grid
Type Rate Value Variation Range
Voltage 230V ﹣15% -﹢10%
Frequency 50Hz ±0.5Hz
Connection Cable
The diameter of connection line should match the basic flow capacity.
5.3 Installation Steps
The unit shall be installed in accordance with national wiring regulations. Compliance
with safety regulations depends upon installing and configuring system correctly,
including using the specified wirings. The system must be installed only by
professional assemblers who are familiar with requirements for safety and EMC. The
assembler is responsible for ensuring that the end system complies with all the
relevant laws in the country where it is to be used.
The individual sub-assembly of the system shall be interconnected by means of the
wiring methods outlined in national/international regulations such as but not limited
to theBS7671 Requirements/ VDE regulation 0107.
Power to the unit must be turned on only after installation work has been
completed. All electrical connections must be carried out by qualified personnel in
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