Siemens SINAMICS S150 - Cooling Air Requirements of Liquid-Cooled S120 Cabinet Modules

SINAMICS S120 Cabinet Modules
Engineering Information
SINAMICS Engineering Manual – November 2015
Ó Siemens AG
444/528
Cross-section of the phase
conductor
mm
2
Minimum cross-section of the external PE
conductor
mm
2
Up to 16 Minimum phase conductor cross-section
16 to 35 16
35 and above Minimum half the phase conductor cross-
section
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
Basic Line Connection Modules
Degree of protection < IP55
Frame size P
rated
at 400 V
[kW]
Cooling air requirement
[m³/s]
Frame size P
rated
at 690 V
[kW]
Cooling air requirement
[m³/s]
Line supply voltage 380 V to 480 V 3AC Line supply voltage 500 V to 690 V 3AC
HL+FBL 360 0.272 GL+FBL 355 0.272
JL+FBL 600 0.272 HL+FBL 630 0.272
JL+GBL 830 0.272 JL+GBL 1100 0.272
JL+GBL 1370 0.272
Active Line Connection Modules
Degree of protection < IP55
Active Line Connection Modules
Degree of protection < IP55
Frame size P
rated
at 400 V
[kW]
Cooling air requirement
[m³/s]
Frame size P
rated
at 690 V
[kW]
Cooling air requirement
[m³/s]
Line supply voltage 380 V to 480 V 3AC Line supply voltage 500 V to 690 V 3AC
JL+JIL+JXL 630 0.272 JL+JIL+JXL 1000 0.272
JL+JIL+JXL 900 0.272 JL+JIL+JXL 1400 0.272
JL+JIL+JXL 1700 0.272
Motor Modules
Degree of protection < IP55
Motor Modules
Degree of protection < IP55
Frame size P
rated
at 400 V
[kW]
Cooling air requirement
[m³/s]
Frame size P
rated
at 690 V
[kW]
Cooling air requirement
[m³/s]
Line supply voltage 380 V to 480 V 3AC Line supply voltage 500 V to 690 V 3AC
HXL 315 0.136 HXL 450 0.136
HXL 400 0.136 HXL 560 0.136
HXL 450 0.136 HXL 710 0.136
JXL 560 0.136 HXL 800 0.136
JXL 710 0.136 JXL 800 0.136
JXL 800 (1330 A) 0.136 JXL 1000 0.136
JXL 800 (1405 A) 0.136 JXL 1200 0.136
JXL 1500 0.136