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Table 8-3 Class 3 - Filtered For Residential, Commercial And Light Industry - Siemens Micromaster 420 Operating Instruction

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Class 3: Filtered - for residential, commercial and light industry
This level of performance will allow the manufacturer / assembler to self-certify
compliance of their apparatus with the EMC directive for the residential, commercial and
light industrial environment as regards the EMC performance characteristics of the power
drive system. Performance limits are as specified in the generic emission and immunity
standards EN 50081-1 and EN 50082-1.
Table 8-3
EMC Phenomenon
Radiated Emissions*
Conducted Emissions
Supply Voltage Distortion
Voltage Fluctuations, Dips, Unbalance,
Frequency Variations
Magnetic Fields
Electrostatic Discharge
Burst Interference
Radio Frequency Electromagnetic Field,
amplitude modulated
Radio-frequency Electromagnetic Field,
pulse modulated
* These limits are dependent on the inverter being correctly installed inside a metallic switchgear
enclosure. The limits will not be met if the inverter is not enclosed.
To achieve these performance levels, you must not exceed the default Pulse
frequency nor use cables longer than 25 m.
The MICROMASTER inverters are intended exclusively for professional
applications. Therefore, they do not fall within the scope of the harmonics
emissions specification EN 61000-3-2.
Maximum mains supply voltage when filters are fitted is 460V.
Class 3 - Filtered for Residential, Commercial and Light Industry
EN 55011
EN 55011
IEC 1000-2-4 (1993)
IEC 1000-2-1
EN 61000-4-8
EN 61000-4-2
EN 61000-4-4
ENV 50 140
ENV 50 204
Level B
Level B
50 Hz, 30 A/m
8 kV air discharge
2 kV power cables, 2 kV control
80-1000 MHz, 10 V/m, 80% AM,
power and signal lines
900 MHz, 10 V/m 50% duty
cycle, 200 Hz repetition rate
MICROMASTER 420 Operating Instructions


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