Mitsubishi Electric FR-A720-0.4K Instruction Manual page 12

400V class
Motor Output
Applicable Inverter Model
(kW)
0.4 FR-A740-0.4K
0.75 FR-A740-0.75K
1.5 FR-A740-1.5K
2.2 FR-A740-2.2K
3.7 FR-A740-3.7K
5.5 FR-A740-5.5K
7.5 FR-A740-7.5K
11 FR-A740-11K
15 FR-A740-15K
18.5 FR-A740-18.5K
22 FR-A740-22K
30 FR-A740-30K
37 FR-A740-37K
45 FR-A740-45K
55 FR-A740-55K
75 FR-A740-75K
90 FR-A740-90K
110 FR-A740-110K
132 FR-A740-132K
160 FR-A740-160K
185 FR-A740-185K
220 FR-A740-220K
250 FR-A740-250K
280 FR-A740-280K
315 FR-A740-315K
355 FR-A740-355K
400 FR-A740-400K
450 FR-A740-450K
500 FR-A740-500K
*1 Select the MCCB according to the power supply capacity. Install one MCCB per inverter.
For installation in the United States, Class RK5, Class J, Class CC, Class L, Class T or any faster acting fuses
or UL 489 Molded Case Circuit Breaker (MCCB) must be provided, in accordance with the National Electrical
Code and any applicable local codes.
For installation in Canada, Class RK5, Class J, Class CC, Class L, Class T or any faster acting fuses or UL
489 Molded Case Circuit Breaker (MCCB) must be provided, in accordance with the Canada Electrical Code
and any applicable provincial codes. (Refer to page 193.)
*2 Magnetic contactor is selected based on the AC-1 class. The electrical durability of magnetic contactor is 500,000 times. When the magnetic
contactor is used for emergency stop during motor driving, the electrical durability is 25 times.
When using the MC for emergency stop during motor driving or using on the motor side during commercial-power supply operation, select the MC
with class AC-3 rated current for the motor rated current.
CAUTION
⋅ When the inverter capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to the
inverter model and cable and reactor according to the motor output.
⋅ When the breaker on the inverter primary side trips, check for the wiring fault (short circuit), damage to internal parts of the
inverter, etc. Identify the cause of the trip, then remove the cause and power on the breaker.
REMARKS
Motor Output (kW) in the above table indicates values when using the Mitsubishi 4-pole standard motor with power supply
voltage of 400VAC 50Hz.
Moulded Case Circuit Breaker
(MCCB) or Earth Leakage
*1
Circuit Breaker (ELB)
(NF or NV type)
Power factor improving
(AC or DC) reactor
without with
5A 5A
5A 5A
10A 10A
10A 10A
20A 15A
30A 20A
30A 30A
50A 40A
60A 50A
75A 60A
100A 75A
125A 100A
150A 125A
175A 150A
200A 175A
⎯
225A
⎯
225A
⎯
225A
⎯
400A
⎯
400A
⎯
400A
⎯
500A
⎯
600A
⎯
600A
⎯
700A
⎯
800A
⎯
900A
⎯
1000A
⎯
1200A
Peripheral devices
Input Side Magnetic Contactor
Power factor improving
(AC or DC) reactor
without with
S-N10 S-N10
S-N10 S-N10
S-N10 S-N10
S-N10 S-N10
S-N10 S-N10
S-N20, S-N21 S-N11, S-N12
S-N20, S-N21 S-N20, S-N21
S-N20, S-N21 S-N20, S-N21
S-N25 S-N20, S-N21
S-N25 S-N25
S-N35 S-N25
S-N50 S-N50
S-N65 S-N50
S-N80 S-N65
S-N80 S-N80
⎯
S-N95
⎯
S-N150
⎯
S-N180
⎯
S-N220
⎯
S-N300
⎯
S-N300
⎯
S-N400
⎯
S-N600
⎯
S-N600
⎯
S-N600
⎯
S-N600
⎯
S-N800
1000A
⎯
Rated product
1000A
⎯
Rated product
MCCB INV
MCCB INV
*2
2
IM
IM
5