Overload factor of frequency inverter and its influence factors?

Question:

Why can an inverter supply a higher rated current, if selection = 120 %?

Answer:

The possibility includes some restrictions compared to selection = 150 %:

1. The upper range of the mains voltage has no limit.
2. The chopper frequency is limited.
3. Additional mains chokes / mains filters are necessary to reduce the mains current.
4. The maximum ambient temperature is limited.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/20010173/1/