Chapter 2 Installation and Wiring
2 - 4
(9) Reduction of enclosure size
If you mount the inverter inside an enclosure such that the heat sink of the inverter is positioned
outside the enclosure, the amount of heat produced inside the enclosure can be reduced and likewise
the size of the enclosure.
Mounting the inverter in an enclosure with the heat sink positioned outside requires an optional
dedicated special metal fitting.
To mount the inverter in an enclosure with the heat sink positioned outside, cut out the enclosure panel
according to the specified cutting dimensions.
The cooling section (including the heat sink) positioned outside the enclosure has a cooling fan.
Therefore, do not place the enclosure in any environment where it is exposed to waterdrops, oil mist,
or dust.
(10) Approximate loss by inverter capacity
Inverter capacity (kW) 11 15 18.5 22 30 37 45 55 75 90 110 132 160
Loss with 70% load (W) 435 575 698 820 1100 1345 1625 1975 2675 3375 3900 4670 5660
Loss with 100% load (W) 600 800 975 1150 1550 1900 2300 2800 3800 4800 5550 6650 8060
Efficiency at rated output (%) 94.8 94.9 95.0 95.0 95.0 95.1 95.1 95.1 95.2 95.2 95.2 95.2 95.2
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