Derating Factors As A Function Of Coolant Temperature - Siemens SINAMICS S120 Equipment Manual

Power Modules
4.7 Technical specifications
4.7.2

Derating factors as a function of coolant temperature

The SINAMICS S120 liquid -cooled devices are suitable for H
antifreeze as coolant, corresponding to Section Antifreeze + biocide (Page 262).
When H
between 5° C and 45° C. The maximum output current decreases linearly to 90% at
temperatures between 45° C and 50° C.
When H
supply 100% output current at temperatures between 0° C and 45° C. The maximum output
current decreases linearly to 90% at temperatures between 45° C and 50° C.
Figure 4-11
100
O is used as a coolant, the units can supply 100% output current at temperatures
2
O and an antifreeze mixture described above is used as a coolant, the units can
2
Maximum output current as a function of coolant temperature
O or a mixture of H
2
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0
O and an
2