Degrees Of Protection - Siemens SINAMICS S120 Equipment Manual

Cooling circuit and coolant properties

8.6 Degrees of protection

8.6 Degrees of protection
SINAMICS S120 Liquid Cooled units have degree of protection IP20 with the exception of
the electrical connections (overall degree of protection IP00).
The temperature ranges specified in Section 3.7.2 also apply to units mounted in a control
cabinet.
No additional measures need to be taken if the modules are mounted in a cabinet with
degree of protection IP21.
However, if they are mounted in a cabinet with a degree of protection higher than IP21, a fan
must be installed above the modules to dissipate any concentrated heat.
The table below specifies the required volumetric flows and the average rates of flow within a
shrouding cover (400 mm high).
If several modules are installed in the same cabinet, then the required volumetric flow
corresponds to the total volumetric flows of the individual components.
In configurations where a number of shrouding covers are interconnected, the total
volumetric flow must also be calculated and a fan selected accordingly.
If a single module is installed in a cabinet with degree of protection IP54, then the fan can be
dispensed with if the required volumetric flow for the module is <0.01 m³/s.
Table 8-10 Required volumetric flows of shrouding cover fan with degree of protection >IP21
Type
Power Module FL, 210 A (400 V)
Power Module FL, 260 A (400 V)
Power Module GL, 310 A (400 V)
Power Module GL, 490 A (400 V)
Basic Line Module FBL, 740 A (400 V)
Basic Line Module FBL, 1220 A (400 V)
Basic Line Module FBL, 420 A (690 V)
Basic Line Module FBL, 730 A (690 V)
Basic Line Module GBL, 1300 A (690 V)
Basic Line Module GBL, 1650 A (690 V)
Motor Module GXL, 310 A (400 V)
Motor Module GXL, 490 A (400 V)
Motor Module HXL, 575 A (690 V)
Motor Module JXL, 810 A (690 V)
Motor Module JXL, 1025 A (690 V)
Motor Module JXL, 1270 A (690 V)
Recommended fan: Supplied by EBM-Papst, type W2E200-HH38-01
8-20
Required volumetric flow dV/dt of
shrouding cover fan
[m³/s]
0.0025
0.0030
0.0036
0.0057
0.0100
0.0170
0.0090
0.0160
0.0180
0.0230
0.0035
0.0056
0.0065
0.0187
0.0210
0.0236
SINAMICS S120 Equipment Manual, Edition 04/2007, 6SL3097-2AM00-0BP2
Average rate of flow
[m/s]
0.01
0.02
0.02
0.03
0.05
0.09
0.05
0.08
0.09
0.12
0.02
0.03
0.03
0.10
0.11
0.12
Chassis Power Units Liquid Cooled