Technical data
Sound pressure level
3
20
BA33.0001 EN 2.0
3.3 Sound pressure level
Motor type Fan operation Sound pressure level
[db (A)]
Comments
MDSKA 056 60 Sound pressure level, A-weighting
MDSKA 071
MDFKA 071
X
60
62
Distance=1m
Motor in no-load operation, U = 3400 min
-1
MDSKA 080
MDFKA 080
X
62
64
Operation with 9300 servo inverters or 8200
MDSKA 090
MDFKA 090
X
63
66
Inverter clock frequency: 8 or 16 kHz
MDSKA 100
MDFKA 100
X
69
72
MDSKA 112
MDFKA 112
X
72
75
MDFQA 110 X 81
MDFQA 112 X 84
MDFQA 132 X 87
MDFQA 160 X 89
MDFMA X ≤ 70
Note!
The noise generated by motors with a separate fan can be reduced if they are
operated with a 9300 servo:
ƒ
If the application does not require permanent ventilation with a separate
fan (e.g. intermittent operation with long cooling periods), the fan s hould
only be activated i f the winding temperature exceeds a certain limit.
ƒ
We recommend: from 120 °C upwards