Mitsubishi Electric 800 Series Instruction Manual page 32

• When designing or building an enclosure for the inverter, carefully consider influencing factors such as heat generation of
the contained devices and the operating environment.
Allow clearance.
*1 When using the inverters at the surrounding air temperature of 40°C or less, the inverters can be installed closely attached (0 cm clearance).
 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.
 Arrangement of multiple inverters
When multiple inverters are placed in the same enclosure, generally arrange them horizontally as shown in the figure (a). When
it is inevitable to arrange them vertically to minimize space, take such measures as to provide guides between the inverters
since heat generated in the inverters in bottom row can increase the temperatures in the inverters in top row, causing inverter
failures.
When installing multiple inverters, fully take measures to prevent the surrounding air temperature of the inverter from being
higher than the permissible value by providing ventilation or increasing the enclosure size.
Inverter
Inverter
Enclosure
(a) Horizontal arrangement
Arrangement of multiple inverters
Clearances (front)
10 cm
or more
1 cm
1 cm
or more
or more
*1
*1
10 cm
or more
Inverter Inverter
Guide Guide
Guide
Inverter Inverter
Enclosure
(b) Vertical arrangement
Clearances (side)
1 cm
or more
2. Installation and Wiring
2.3 Installation of the inverter and enclosure design
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