68
Molded case circuit breaker, magnetic contactor, cable gauge
Vo
lt
ag
e
Applicable
Inverter Model
Motor
Output
(kW)
Moulded Case Circuit Breaker (MCCB)
or
Earth Leakage Circuit Breaker (ELB)
(NF or NV type)
Input Side Magnetic
Contactor
Recommended Cable Gauge
(mm
2
)
Power factor improving (AC or DC) reactor
connection
Power factor improving
(AC or DC) reactor
connection
R/L1, S/L2,
T/L3
U, V, W
Power factor
improving
(AC or DC) reactor
connection
Without
With
Without
With
Without
With
200V cla
ss
FR-F720PJ-0.4K
0.4
5A
5A
S-T10
S-T10
2
2
2
FR-F720PJ-0.75K
0.75
10A
5A
S-T10
S-T10
2
2
2
FR-F720PJ-1.5K
1.5
15A
10A
S-T10
S-T10
2
2
2
FR-F720PJ-2.2K
2.2
20A
15A
S-T10
S-T10
2
2
2
FR-F720PJ-3.7K
3.7
30A
30A
S-T21
S-T10
3.5
3.5
3.5
FR-F720PJ-5.5K
5.5
50A
40A
S-T35
S-T21
5.5
5.5
5.5
FR-F720PJ-7.5K
7.5
60A
50A
S-T35
S-T35
14
8
8
FR-F720PJ-11K
11
75A
75A
S-T35
S-T35
14
14
14
FR-F720PJ-15K
15
125A
100A
S-T50
S-T50
22
22
22
400V cla
ss
FR-F740PJ-0.4K
0.4
5A
5A
S-T10
S-T10
2
2
2
FR-F740PJ-0.75K
0.75
5A
5A
S-T10
S-T10
2
2
2
FR-F740PJ-1.5K
1.5
10A
10A
S-T10
S-T10
2
2
2
FR-F740PJ-2.2K
2.2
15A
10A
S-T10
S-T10
2
2
2
FR-F740PJ-3.7K
3.7
20A
15A
S-T10
S-T10
2
2
2
FR-F740PJ-5.5K
5.5
30A
20A
S-T21
S-T12
3.5
2
2
FR-F740PJ-7.5K
7.5
30A
30A
S-T21
S-T21
3.5
3.5
3.5
FR-F740PJ-11K
11
50A
40A
S-T21
S-T21
5.5
5.5
5.5
FR-F740PJ-15K
15
60A
50A
S-T35
S-T21
8
5.5
5.5
·Select an MCCB model according to the power supply capacity.
·Install one MCCB per inverter.
For the use in the United States or Canada, select a UL and cUL certified fuse with Class T fuse equivalent cut-off speed or faster with the appropriate
rating for branch circuit protection. Alternatively, select a UL489 molded case circuit breaker (MCCB).
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.
If using an MC for emergency stop during motor driving, select an MC regarding the inverter input side current as JEM1038-AC-3 class rated current.
When using an MC on the inverter output side for commercial-power supply operation switching using a general purpose motor, select an MC regarding
the motor rated current as JEM1038-AC-3 class rated current.
The recommended cable gauge is that of the cable (e.g. HIV cable (600V class 2 vinyl-insulated cable)) with continuous maximum permissible
temperature of 75ºC. Assumes that the surrounding air temperature is 50ºC or less and the wiring distance is 20m or less.
NOTE
When the inverter capacity is larger than the motor capacity during the general-purpose motor operation, 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
Summary of Contents for F720PJ-11KF
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