A-2 Smoothing Capacitor Life Curve
Note 1. “Ambient temperature” refers to the temperature measured at a distance of approximately 5 cm from the
bottom center of the inverter (atmospheric temperature).
It refers to an interior temperature if the inverter is stored in a cabinet.
2. The smoothing capacitor has a limited life because it is subjected to chemical reaction inside the part
and, as a guide, the inverter needs to be replaced once a decade approximately. (This period is an
expected design life, and not the guaranteed value.)
However, if the Inverter is used at a high ambient temperature or in a heavy load environment such as
at the over-rated current, its life will be significantly shortened.
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