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Description
3.3 Design
3.3.6
Noise emission
When operated in the speed range 0 to 5000 rpm, 1PH813 motors can reach the following
measuring-surface sound-pressure level Lp(A):
Cooling method
Self-cooled
Force ventilated
Water-cooled
The motors are certified for a wide range of installation and operating conditions. These
conditions such as rigid or vibration-isolated foundation design influence noise emission,
sometimes significantly.
24
Measuring-surface sound-pressure level Lp(A)
70 dB(A) + 3 dB tolerance
70 dB(A) + 3 dB tolerance
68 dB(A) + 3 dB tolerance
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
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