Fuji Electric FRENIC-MEGA - Molded Case Circuit Breaker (MCCB) and Residual-Current-Operated Protective Device (Rcd);Earth Leakage Circuit Breaker (ELCB)

1-5
DCR models Input power factor Remarks
DCR2/4-/A/B Approx. 90% to 95% The last letter identifies the capacitance.
DCR2/4-C Approx. 86% to 90%
Exclusively designed for nominal applied motor of 37 kW
or above.
Select a DCR matching not the inverter but the nominal applied motor. Applicable reactors differ depending
upon the selected HD, MD, or LD mode even on the same type of inverters.
(4) PWM converter for correcting the inverter input power factor
Using a PWM converter (High power-factor, regenerative PWM converter, RHC series) corrects the inverter power factor
up to nearly 100%. When combining an inverter with a PWM converter, disable the main power loss detection by setting
the function code H72 to "0." If the main power loss detection is enabled (H72 = 1 by factory default), the inverter
interprets the main power as being shut down, ignoring an entry of a run command.
(5) Molded case circuit breaker (MCCB) or residual-current-operated protective device (RCD)/earth leakage circuit breaker
(ELCB)
Install a recommended MCCB or RCD/ELCB (with overcurrent protection) in the primary circuit of the inverter to
protect the wiring. Since using an MCCB or RCD/ELCB with a lager capacity than recommended ones breaks the
protective coordination of the power supply system, be sure to select recommended ones. Also select ones with
short-circuit breaking capacity suitable for the power source impedance.
Molded Case Circuit Breaker (MCCB) and
Residual-Current-Operated Protective Device (RCD)/Earth Leakage Circuit Breaker (ELCB)
Rated current of
MCCB and
RCD/ELCB (A)
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type
HD/
MD/
LD
mode
w/ DCR w/o DCR
0.4 FRN0.4G1-2 5
0.75 FRN0.75G1-2
5
10
1.5 FRN1.5G1-2 15
2.2 FRN2.2G1-2
10
20
3.7 FRN3.7G1-2
HD
20 30
5.5 HD 30 50
FRN5.5G1-2
LD
7.5
HD
40 75
FRN7.5G1-2
LD
11
HD
50 100
FRN11G1-2
LD
15
HD
75 125
FRN15G1-2
LD
18.5
HD
150
FRN18.5G1-2
LD
22
HD
100
175
FRN22G1-2
LD
30
HD
150 200
FRN30G1-2
LD
37
HD
175 250
FRN37G1-2
LD
45
HD
200 300
FRN45G1-2
LD
55
HD
250 350
FRN55G1-2
LD
75
HD
350
FRN75G1-2
LD
90
HD
400
Three-phase 200 V
110
FRN90G1
-2
LD 350
--
Rated current of
MCCB and
RCD/ELCB (A)
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type
HD/
MD/
LD
mode
w/ DCR w/o DCR
0.4 FRN0.4G1-4
0.75 FRN0.75G1-4
5
1.5 FRN1.5G1-4
5
10
2.2 FRN2.2G1-4 15
3.7
4.0
FRN3.7G1-4A
FRN4.0G1-4E *
HD
10
20
5.5 HD 15 30
FRN5.5G1-4
LD
7.5
HD
20 40
FRN7.5G1-4
LD
11
HD
30 50
FRN11G1-4
LD
Three-phase 400 V
15
FRN15G1
-4 HD
40 60
Rated current of
MCCB and
RCD/ELCB (A)
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type
HD/
MD/
LD
mode
w/ DCR w/o DCR
FRN15G1-4 LD
18.5
HD
40 75
FRN18.5G1-4
LD
22
HD
50 100
FRN22G1-4
LD
30
HD
75
FRN30G1-4
LD
37
HD
125
FRN37G1-4
LD
45
HD
100
150
FRN45G1-4
LD
55
HD
125 200
FRN55G1-4
LD
75
HD
175
FRN75G1-4
LD
90
HD
200
FRN90G1-4
MD/LD
110
HD
250
FRN110G1-4
MD/LD
132
HD
300
FRN132G1-4
MD/LD
160
HD
350
FRN160G1-4
MD/LD
200
HD
FRN200G1-4
MD/LD
220
HD
500
250 MD
FRN220G1-4
LD
280
HD
600
FRN280G1-4
MD
315
FRN315G1-4 HD
FRN280G1-4 LD
FRN315G1-4 MD
355
FRN355G1
-4 HD
800
FRN315G1-4 LD
FRN355G1-4 MD
400
FRN400G1-4 HD
FRN355G1-4 LD
450
MD
FRN400G1-4
LD
500
HD
1200
FRN500G1-4
LD
630
HD
1400
Three-phase 400 V
710
FRN630G1
-4
LD 1600
--
* 4.0 kW for the EU. The inverter type is FRN4.0G1-4E.
Note: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replaces A or E depending on the shipping destination.
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