Mitsubishi Electric FR-A872-E Instruction Manual page 30

*1 Side-by-side installation (0 cm clearance) is available. Note that clearance to pass cables is required. (Refer to
*2 A 10 cm or more clearance is required below the bottom of the enclosure (regardless of the installation feet).
*3 There needs to be a space of at least 60 cm in front of the inverter to replace the cooling fan. Refer to
 Installation orientation of the inverter
Install the inverter on a wall as specified. Do not mount it horizontally or in any other way.
 Above the inverter
Heat is blown up from inside the inverter by the small fan built in the unit. Any equipment placed above the inverter should be
heat resistant.
 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
below. 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.
Converter
unit
Converter
unit
Arrangement of multiple inverters and converter units
 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.)
Inverter
<Good example>
Arrangement of the ventilation fan and inverter
Converter
Inverter Inverter
unit
Inverter
Enclosure
Inverter
<Bad example>
page 50.)
page 97 for fan replacement.
2. INSTALLATION AND WIRING
2.3 Installation of the inverter and enclosure design
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