Fuji Electric FRENIC-MEGA - Leakage Current of EMC-Filter Built-In Type of Inverters

9-3
Chap. 9 CONFORMITY WITH STANDARDS
9.3.3 Leakage current of EMC-filter built-in type of inverters
An EMC filter uses grounding capacitors for noise suppression which increase leakage current. When using an EMC-filter
built-in type of inverters, therefore, check whether there is no problem with electrical systems.
Three-Phase PDS (Power Drive System) with touch currents ≥ 3.5 mA AC or ≥ 10 mA DC
As the touch current (leakage current) of inverters with EMC-filter is relatively high, it is of essential importance to
always assure a reliable connection to Protective Earth (PE).
In Table 9.1, for the inverter types whose leakage currents are equal to or exceed the critical value of 35 mA AC or 10 mA
DC (IEC 61800-5-1), the minimum cross sectional area of the PE-conductor should be:
- 10 mm
2
(Cu-conductors)
- 16 mm
2
(Al-conductors)
An electric shock could occur.
Table 9.1 Leakage Current of EMC Filter Built-in Type of Inverters
Input
Power
Inverter type
*1)
Leakage current
(mA)
Input
Power
Inverter type
*1)
Leakage current
(mA)
FRN0.4G1E-2 FRN0.4G1E-4
FRN0.75G1E-2
2
FRN0.75G1E-4
3
FRN1.5G1E-2 FRN1.5G1E-4
FRN2.2G1E-2 FRN2.2G1E-4
FRN3.7G1E-2
4
FRN5.5G1E-2
FRN3.7G1E-4A
FRN4.0G1E-4E*
2
FRN7.5G1E-2 FRN5.5G1E-4
FRN11G1E-2
23
FRN7.5G1E-4
FRN15G1E-2 FRN11G1E-4
FRN18.5G1E-2 FRN15G1E-4
FRN22G1E-2 FRN18.5G1E-4
FRN30G1E-2 FRN22G1E-4
4
FRN37G1E-2 FRN30G1E-4
FRN45G1E-2 FRN37G1E-4
FRN55G1E-2 FRN45G1E-4
11
FRN75G1E-2 FRN55G1E-4
Three-phase
200 V
*2)
FRN90G1E-2
25
FRN75G1E-4
FRN90G1E-4
FRN110G1E-4
FRN132G1E-4
FRN160G1E-4
FRN200G1E-4
FRN220G1E-4
FRN280G1E-4
FRN315G1E-4
FRN355G1E-4
FRN400G1E-4
FRN500G1E-4
Three-phase
400 V
*3)
FRN630G1E-4
5
* FRN4.0G1E-4E for the EU in which the nominal applied motor rating is 4.0 kW.
*1) A box (

) in the above table replaces A or E depending on the shipping destination.
*2)
Calculated based on these measuring conditions: 240 V, 60 Hz, grounding of a single wire in delta connection, interphase voltage
unbalance ratio 2%.
*3) Calculated based on these measuring conditions: 480 V, 60 Hz, neutral grounding in Y-connection, interphase voltage unbalance ratio
2%.
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