DMS Manual
Mechanical
details
■
Ventilation
DMS cooling is by means of air circulation.
Consequently, the air needs to be able to move
freely above and below the soft starter.
If installing the DMS in a switchboard or other enclosure,
ensure there is sufficient airflow through the enclosure
to limit heat rise in the enclosure to maintain the internal
enclosure temperature at or below 40 deg. C. (Heat
loss of DMS at rated current is 18 watts approx.).
40
50
60
70%
80%
90%
100%
FLC
Temperature, Degrees Centigrade
177ha021.10
Derating curve for temperature
1000
92%
94%
96%
98%
FLC
Altitude, Meters from Mean Sea Level
177ha022.10
100%
2000
3000
34
40
38
36
Max. ambient temperatur
e at 100% FLC
Derating curve for altitude
MG.05.A2.02 - VLT is a registered Danfoss trademark
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