Siemens SINAMICS G120 Hardware Installation Manual page 67

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Field-conducted, high-frequency noise emission of an unfiltered inverter
When installed professionally in accordance with EMC guidelines, the inverters fulfill the
requirements of the standard.
Second environment - category C2
Immunity
With respect to their immunity, the inverters are suitable for the second environment, Category
C2.
Emitted interference
General preconditions in order to maintain the limit values regarding noise emission for the
second environment, Category C2:
In order for the inverters to comply with the limit values for category C2 relating to emitted
interference, the following conditions must be fulfilled:
• You are using an inverter with an integrated filter
• The motor cable is shorter than 25 m.
• The pulse frequency does not exceed 4 kHz
• The current does not exceed the value of the LO input current
(Page 58)
• You are using a shielded motor connection cable with low capacitance
First environment - category C2
Immunity
With respect to their immunity, the converters are suitable for the first environment, Category
C2.
PM250 Power Module
Hardware Installation Manual, 04/2021, A5E36265179B-AB
Compliance with EMC limits with unfiltered devices
7.7 Electromagnetic compatibility of the inverter
(https://support.industry.siemens.com/
Technical specifications
Power-dependent data
65