Fronius FK 4000, Operating Instructions Manual, Page: 26 / 52

Adapting the cooling unit to the respective mains
voltage
Safety
WARNING!
An electric shock can be fatal.
Before starting work:
▶
turn the power source mains switch to the "O" position
▶
disconnect the power source from the mains
▶
ensure that the power source remains disconnected from the mains until all work
has been completed
After opening the device, use a suitable measuring instrument to check that electrically
charged components (e.g. capacitors) have been discharged.
WARNING!
An inadequate ground conductor connection can cause serious injury or damage.
The housing screws provide a suitable ground conductor connection for earthing the
housing and must NOT be replaced by any other screws that do not provide a reliable
ground conductor connection.
General The TS 4000 MV / 5000 MV and TPS 2700 MV / 4000 MV / 5000 MV power sources can
be operated as standard at a mains voltage of 3 x 200-240V / 3 x 380-460V (+/-10%).
The mains voltage switching in the power source takes place automatically.
The cooling units are factory-configured for the following mains voltages:
FK 4000 = 3 x 230 / 400 V, 50 / 60 Hz, +/-10%
FK 4000 R = 3 x 400 V, 50 / 60 Hz, +/-10%
FK 4000 Rob = 3 x 400 V, 50 / 60 Hz, +/-10%
FK 4000 R FC = 3 x 400 V, 50 / 60 Hz, +/-10%
FK 4000 R US = 3 x 230 / 460 V, 50 / 60 Hz, +/- 10%
The cooling units are adapted accordingly for other mains voltages with the help of an
auto-transformer.
NOTE!
The auto-transformer is available as an option for the FK 4000 R, FK 4000 Rob and
FK 4000 R FC cooling units.
For the FK 4000 and FK 4000 R US cooling units, the auto-transformer is fitted as stand-
ard.
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