Cooling Air Requirements Of Liquid-Cooled S120 Cabinet Modules - Siemens SINAMICS G130 Engineering Manual

SINAMICS S120 Cabinet Modules
Engineering Information
Cross-section of the phase
conductor
2
mm
Up to 16
16 to 35
35 and above
7.3.2.4

Cooling air requirements of liquid-cooled S120 Cabinet Modules

Most of the heat losses generated by liquid-cooled S120 Cabinet Modules are dissipated by the coolant.
Nevertheless, a specific volume of cooling air must be supplied depending on the degree of protection of the liquid-
cooled S120 Cabinet Modules. This volume of cooling air must always be supplied, even under challenging boundary
conditions.
With degrees of protection IP21 to IP43, cooling air is sucked in through ventilation openings near the bottom of the
cabinet doors. The heated air is expelled out forwards through ventilation openings by fans mounted near the top of
the doors. The roof panel is closed.
A cabinet with degree of protection IP55 is completely enclosed so that it does not need an external air supply.
However, the air inside the cabinet is circulated by fans and cooled by air-to-water heat exchangers installed in the
cabinet.
The tables below specify the cooling air requirements of liquid-cooled Cabinet Modules for degrees of protection
< IP55:
Basic Line Connection Modules
Degree of protection < IP55
Frame size P
rated
[kW]
Line supply voltage 380 V to 480 V 3AC
HL+FBL
JL+FBL
JL+GBL
Active Line Connection Modules
Degree of protection < IP55
Frame size P
rated
[kW]
Line supply voltage 380 V to 480 V 3AC
JL+JIL+JXL 630
JL+JIL+JXL 900
Motor Modules
Degree of protection < IP55
Frame size P at 400 V
rated
[kW]
Line supply voltage 380 V to 480 V 3AC
HXL 315
HXL 400
HXL 450
JXL 560
JXL 710
JXL 800 (1330 A)
JXL 800 (1405 A)
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Ó Siemens AG
Minimum cross-section of the external PE
Minimum phase conductor cross-section
Minimum half the phase conductor cross-
at 400 V Cooling air requirement
[m³/s]
360 0.272
600 0.272
830 0.272
at 400 V Cooling air requirement
[m³/s]
0.272
0.272
Cooling air requirement
[m³/s]
0.136
0.136
0.136
0.136
0.136
0.136
0.136
conductor
2
mm
16
section
Basic Line Connection Modules
Degree of protection < IP55
Frame size
Line supply voltage 500 V to 690 V 3AC
GL+FBL
HL+FBL
JL+GBL
JL+GBL
Active Line Connection Modules
Degree of protection < IP55
Frame size
Line supply voltage 500 V to 690 V 3AC
JL+JIL+JXL
JL+JIL+JXL
JL+JIL+JXL
Motor Modules
Degree of protection < IP55
Frame size
Line supply voltage 500 V to 690 V 3AC
HXL
HXL
HXL
HXL
JXL
JXL
JXL
JXL
P at 690 V Cooling air requirement
rated
[kW] [m³/s]
355 0.272
630 0.272
1100 0.272
1370 0.272
P at 690 V Cooling air requirement
rated
[kW] [m³/s]
1000 0.272
1400 0.272
1700 0.272
P at 690 V Cooling air requirement
rated
[kW] [m³/s]
450 0.136
560 0.136
710 0.136
800 0.136
800 0.136
1000 0.136
1200 0.136
1500 0.136