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9
Table 1 EMC standards
Category
Subcategory
Product stan-
dards
Test standard and level
Radiation noise
CISPR/B/276/DC Class A Group 1
Emission
Transmission noise
CISPR/B/276/DC Class A Group 1
Static discharge
IEC61000-4-2
Radioactive radio-frequency mag-
netic contactor field
IEC61000-4-3
First transient burst
IEC61000-4-4
Lightning surge
IEC61000-4-5
Radio-frequency induc-
tion/transmission interference
IEC61000-4-6
Immunity
Voltage dip/Interruption of power
IEC 61800-3
IEC61000-4-11
Emission standards other than the above are applied to inverters when used in a commercial environment but not
an industrial environment.
Category
Subcategory
Product stan-
dards
Test standard and level
Radiation noise
CISPR/B/276/DC Class B Group 1
Emission
Transmission noise
IEC 61800-3
CISPR/B/276/DC Class B Group 1
9.1.2 Measures to satisfy the EMC directive
This subsection explains what measures must be taken to satisfy the EMC directive.
(1)
Insert a recommended EMI filter (Table 2) on the input side of the inverter to reduce and transmission noise
and radiation noise from input cables.
In the combinations listed in Table 2, Inverters are tested in these combination to see if they comply with
transmission noise standards. For inverters used in Japan, it is recommended to use the NF series of noise
filters.
Table 2 lists noise filters recommended for the inverters.