Cooling Clearances - Siemens SINAMICS S120 Manual

NOTICE
Damage to the component through condensation
Condensation on the components can cause them to fail.
• Select the air circuit and arrangement of the cooling equipment in such a way that no
• If required, an anti-condensation heater must be installed in the cabinet.
If air conditioners are used, the relative air humidity of the expelled air increases as the air in
the air conditioner cools and may exceed the dew point. If the relative humidity of the air
entering the SINAMICS components is over 80% for an extended period of time, it can be
assumed that the insulation of the components will fail as a result of electrochemical
reactions (see System overview (Page 35)). Using air baffle plates, for example, you must
ensure that the cold air expelled from the air conditioner mixes with warm air in the cabinet
before it enters the components. This reduces the relative air humidity to uncritical values.
12.11.3

Cooling clearances

Table 12- 32 Cooling clearances required above and below SINAMICS components
Component
CU320-2
Sensor Modules Cabinet-Mounted SMCxx
Terminal Modules TMx
Line filter for Line Modules
Active Interface Modules
Line reactors for Line Modules
Active Line Modules
16 ... 55 kW
80 ... 120 kW
Smart Line Modules Booksize
Smart Line Modules Booksize Compact
Basic Line Modules
Motor Modules Booksize
< 132 A
132 A/200 A
Motor Modules Booksize Compact
Braking Module Booksize
Braking Module Booksize Compact
Control Supply Module
Capacitor Module
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
condensation can form on the components.
Cabinet design and EMC Booksize
12.11 Notes on electrical cabinet cooling
Clearance [mm]
80
50
50
100
80
100
80
80 (additional 50 in front of fan)
80
80
80
80
80 (additional 50 in front of fan)
80
80
80
80
80
749