X51 Connection, Fan Power Supply - Siemens SINAMICS S120 Equipment Manual

5.5.3.4

X51 connection, fan power supply

Table 5- 45
Max. connectable cross-section: 6.0 mm
A 3-pole 16 A miniature circuit breaker, with a tripping characteristic Class C is
recommended to protect the fan power supply.
Note
After installation, screw on the connector.
Note
Connect the PE connection with the PE connection of the electrical cabinet.
Note
When connected to an ungrounded line supply (IT system), an isolating transformer must be
connected upstream of the fan power supply, see Chapter "Operating an Active Line Module
Chassis-2 on an ungrounded supply (IT system) (Page 245)".
Note
For installation altitudes exceeding 2000 m, an isolating transformer must be connected
upstream of the fan power supply.
NOTICE
Damage to the fan when pulling the connector under load
The fan can become damaged if the connector is pulled under load (while the fan is
rotating).
• Do not pull the connector under load.
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9
Terminal strip X51, fan power supply connection
Connector Terminal
L1
L2
L3
PE
5.5 Active Line Modules Chassis-2
Function Technical specifications
L1 Supply voltage: 3 AC 380 V ... 480 V
Frequency: 47 ... 63 Hz
L2
Max. load current: 1.8 A
L3
PE Connection is connected to the fan housing.
2
Line Modules
229