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INSTALLATION AND WIRING
400V class
Motor
Output
(kW)
*1
Applicable Inverter
Model
Moulded Case Circuit Breaker (MCCB) *2
or Earth Leakage Circuit Breaker (ELB)
(NF or NV type)
Input Side Magnetic Contactor*3
Power factor improving (AC or DC) reactor
Without With Without With
0.75 FR-F740P-0.75K 5A 5A S-N10 S-N10
1.5 FR-F740P-1.5K 10A 10A S-N10 S-N10
2.2 FR-F740P-2.2K 10A 10A S-N10 S-N10
3.7 FR-F740P-3.7K 20A 15A S-N10 S-N10
5.5 FR-F740P-5.5K 30A 20A S-N20, S-N21 S-N11, S-N12
7.5 FR-F740P-7.5K 30A 30A S-N20, S-N21 S-N20, S-N21
11 FR-F740P-11K 50A 40A S-N20, S-N21 S-N20, S-N21
15 FR-F740P-15K 60A 50A S-N25 S-N20, S-N21
18.5 FR-F740P-18.5K 75A 60A S-N25 S-N25
22 FR-F740P-22K 100A 75A S-N35 S-N25
30 FR-F740P-30K 125A 100A S-N50 S-N50
37 FR-F740P-37K 150A 125A S-N65 S-N50
45 FR-F740P-45K 175A 150A S-N80 S-N65
55 FR-F740P-55K 200A 175A S-N80 S-N80
75 FR-F740P-75K ⎯ 225A ⎯ S-N95
90 FR-F740P-90K ⎯ 225A ⎯ S-N150
110 FR-F740P-110K ⎯ 225A ⎯ S-N180
132 FR-F740P-132K ⎯ 400A ⎯ S-N220
150 FR-F740P-160K ⎯ 400A ⎯ S-N300
160 FR-F740P-160K ⎯ 400A ⎯ S-N300
185 FR-F740P-185K ⎯ 400A ⎯ S-N300
220 FR-F740P-220K ⎯ 500A ⎯ S-N400
250 FR-F740P-250K ⎯ 600A ⎯ S-N600
280 FR-F740P-280K ⎯ 600A ⎯ S-N600
315 FR-F740P-315K ⎯ 700A ⎯ S-N600
355 FR-F740P-355K ⎯ 800A ⎯ S-N600
400 FR-F740P-400K ⎯ 900A ⎯ S-N800
450 FR-F740P-450K ⎯ 1000A ⎯
1000A
Rated product
500 FR-F740P-500K ⎯ 1200A ⎯
1000A
Rated product
560 FR-F740P-560K ⎯ 1500A ⎯
1200A
Rated product
*1 Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 400VAC 50Hz.
*2 Select the MCCB according to the power supply capacity.
Install one MCCB per inverter.
For using commercial-power supply operation, select a breaker with capacity which allows the motor to be
directly power supplied.
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 169.)
*3 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 select 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.
MCCB INV
MCCB INV
M
M