
•
Do not extend the shields with single wires and do not interrupt them if possible.
•
When constructing the switchgear cabinet or the system, separate the power section from the
control section. Eventually provide a shield between power and control section.
•
Wire inductive switching elements (coils of contactors or relays) with RC-elements, free-wheeling
diodes or varistors.
12.5. Mains back-up fuses
External upstream fuses are required to protect the cables and the unit itself. The fuses must be
dimensioned so as to permit starting up and normal operation of motors. To guarantee this , we
recommend the use of the followings slow-blow fuses:
Mains input 1 x 230V
0.37kW 0.55kW 0.75kW 1.1kW 2.2kW
4A 8A 8A 8A 16A
Mains input 3 x 400V
0.75kW 1.1kW 1.5kW 2.2kW 3.0kW 4.0kW 5.5kW
4A 6A 6A 8A 10A 16A 20A
Mains input 3 x 400V
7.5kW 11.0kW 15.0kW 22.0kW 30.0kW 37.0kW
35A 35A 63A 63A 80A 100A
12.6. Ventilation
For all inverters, the permissible ambient temperature of 45 °C must not be exceeded. This
particularly applies if the inverter is installed in a control cabinet, because operation of the inverter
may increase the ambient temperature substantially. Appropriate measures, e.g. installation of a
fan, must be taken if the permissible ambient temperature is almost reached or exceeded under
full loading of the inverter.
BERGES electronic
18 Operating manual ACM D2/S2 09.07.2001
Содержание ACM S2
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