Mitsubishi Electric A800-GF Instruction Manual page 24

Encasing multiple inverters and converter units
When multiple inverters and converter units are placed in the
same enclosure, arrange them horizontally as shown in the
figure on the right.
Do not place multiple products vertically. The exhaust air
temperature of the inverter and the converter unit may be
increased.
When mounting multiple inverters and converter units, fully take
caution not to make the surrounding air temperature of the
inverter and the converter unit higher than the permissible value
by providing ventilation and increasing the enclosure size.
Arrangement of the ventilation fan and inverter
Heat generated in the inverter is blown up from the bottom of
the unit as warm air by the cooling fan. When installing a
ventilation fan for that heat, determine the place of ventilation
fan installation after fully considering an air flow. (Air passes
through areas of low resistance. Make an airway and airflow
plates to expose the inverter to cool air.)
Installation and enclosure design
Converter
Inverter
unit
Converter
Inverter
unit
Enclosure
Arrangement of multiple inverters and converter units
Inverter
<Good example>
Arrangement of the ventilation fan and inverter
INSTALLATION AND WIRING
Converter
Inverter
unit
Inverter
<Bad example>
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