3.10 Noise emission
When operated in the speed range 0 to rated speed, 1FK2 motors can reach the following
measuring surface sound pressure level L
p
:
Table 3-5 Sound pressure level
Cooling method Frame size Enveloping surface sound pressure level L
p
Naturally cooled 1FK2☐03
1FK2☐04
55 dB(A) + 3 dB tolerance
1FK2☐05
1FK2☐06
65 dB(A) + 3 dB tolerance
1FK2☐08
1FK2☐10
70 dB(A) + 3 dB tolerance
The motors are approved for numerous installation and operating conditions. These conditions
such as rigid or vibration-isolated foundation design inuence noise emission, sometimes
signicantly.
Mechanical properties
3.10 Noise emission
1FK2 Synchronous Motors for SINAMICS S120
56 Conguration Manual, 02/2022, A5E46927724B AD