10.3.2 Derating and Mains Voltage
Reduced over current based on mains voltage.
The EFC 3600 frequency converters are thermally dimensioned for the rated cur-
rent. This rated current is available with the specified rated voltage. With deviat-
ing voltages in the permissible range, please pay attention to the following:
● U
mains
<U
rated
: With mains voltage below the rated voltage, no higher current
may be withdrawn to ensure that the dissipated power remains.
● U
mains
>U
rated
: With mains voltage above the rated voltage, a reduction of the
permissible output permanent current takes place to compensate for the in-
creased switching losses.
Fig. 10-1: Derating and mains voltage
● 400 V model:
1 % power derating upon every 4 V decreasing when mains volt-
age < 380 V.
● 200 V model:
1 % power derating every 2 V decreasing when mains voltage <
200 V.
10.3.3 Derating and Output Current
For the whole power range of EFC 3600 from 0K40 to 4K00, current derating
based on pulse frequency is unnecessary.
Bosch Rexroth AG
Technical Data
EFC 3600
140/259
DOK-RCON03-EFC-3600***-IT03-EN-P