Fuji Electric FRENIC MEGA G2 Series - Page 738

11.3 Molded Case Circuit Breakers (MCCB), Earth Leakage Circuit Breakers (ELCB) and
Magnetic Contactors (MC)
11-10
Table 11.3-2 shows the relationship between the ELCB (with overcurrent protection) sensitivity current
and wiring length at the output side. Note that the sensitivity levels listed in the table are estimated
values based on the results obtained by the test setup in the Fuji laboratory where each inverter drives
a single motor.
Table 11.3-2 Application classification for earth leakage breaker (ELCB) sensitivity current
Power
system
Standard
applicable
motor
(kW) [HP]
Wire length and sensitivity current
10 m
30 m
50 m
100 m
200 m
300 m
Three-phase
200 V
0.4 [1/2]
0.75 [1]
1.5 [2]
2.2 [3]
30 mA
3.7 [5]
5.5 [7.5]
7.5 [10]
100 mA
11 [15]
15 [20]
18.5 [25]
200 mA
22 [30]
30 [40]
37 [50]
45 [60]
55 [75]
75 [100]
500 mA
90 [125]
110 [150]
Three-phase
400 V
0.4 [1/2]
0.75 [1]
1.5 [2]
2.2 [3]
3.7 [5]
30 mA
5.5 [7.5]
7.5 [10]
11 [15]
100 mA
15 [20]
18.5 [25]
22 [30]
200 mA
30 [40]
37 [50]
45 [60]
500 mA
55 [75]
75 [100]
90 [125]
110 [150]
132 [200]
1000 mA
160 [250]
(Special)
200 [300]
220 [350]
250 [350]
280 [400]
315 [450]
355 [500]
3000 mA
400 [600]
(Special)
450 [700]
560 [900]
630 [900]
710 [1000]
• Values listed above were obtained using Fuji ELCB EG or SG series applied to the test setup.
• The calculation for the power supply grounding is based on single wire grounding with Δ-connection for the
200V series, and neutral grounding with Y-connection for the 400V series.