Mitsubishi Electric FR-A820-00046 Instruction Manual page 126

Electro-magnetic interference (EMI) and leakage currents
Example
3
Leakage current Ig1 (mA)
Leakage current Ign (mA)
Leakage current Igi (mA)
Leakage current Ig2 (mA)
Motor leakage current Igm (mA)
Total leakage current (mA)
Rated sensitivity current (mA) (≥ Ig × 10)
Tab. 3-2:
Inverter leakage current (with and without EMC filter)
Input power conditions: (200 V class: 220 V/60 Hz, 400 V class: 440 V/60 Hz,
power supply unbalance within 3%)
Phase grounding
Earthed-neutral system
Tab. 3-3:
3 - 4
5.5 mm² × 5 m
ELB
Noise filter
Drive unit
Ig1 Ign
Igi
Estimation of the permanent flowing leakage current
Voltage (V)
Inverter leakage current (with and without built-in EMC filter)
5.5 mm² × 60 m
M
3~
Ig2 Igm
Breaker designed for
harmonic and surge
suppression
33 ×
For the leakage current of the inverter, refer to the following table.
33 ×
3.00
30
ON (mA)
200
400
400
Precautions for use of the inverter
3~,
200 V,
2.2 kW
Standard breaker
5 m
= 0.17
1000 m
0 (without noise filter)
1 (with EMC filter)
50 m
= 1.65
1000 m
0.18
6.66
100
EMC filter
OFF (mA)
22
35
2
1
2
1