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Peripheral Devices - Mitsubishi Electric FR-F700PJ Instruction Manual

Air-conditioning inverter.
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1.2.1

Peripheral devices

Check the inverter model of the inverter you purchased. Appropriate peripheral devices must be selected according to the capacity.
Refer to the following list and prepare appropriate peripheral devices.
Inverter Model
Output

FR-F720PJ-0.4K
FR-F720PJ-0.75K
FR-F720PJ-1.5K
FR-F720PJ-2.2K
FR-F720PJ-3.7K
FR-F720PJ-5.5K
FR-F720PJ-7.5K
FR-F720PJ-11K
FR-F720PJ-15K
FR-F740PJ-0.4K
FR-F740PJ-0.75K
FR-F740PJ-1.5K
FR-F740PJ-2.2K
FR-F740PJ-3.7K
FR-F740PJ-5.5K
FR-F740PJ-7.5K
FR-F740PJ-11K
FR-F740PJ-15K

Assumes the power supply voltage is for a dedicated IPM motor or of a Mitsubishi 50Hz 4-pole standard motor.

Select an MCCB 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 by 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 by regarding
the rated motor current as JEM1038-AC-3 class rated current.
NOTE
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 input 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.
Moulded Case Circuit Breaker (MCCB) 
or Earth Leakage Circuit Breaker (ELB) 
Motor
(NF or NV type)
(kW)
Without
0.4
5A
0.75
10A
1.5
15A
2.2
20A
3.7
30A
5.5
50A
7.5
60A
11
75A
15
125A
0.4
5A
0.75
5A
1.5
10A
2.2
15A
3.7
20A
5.5
30A
7.5
30A
11
50A
15
60A
Inverter and peripheral devices
Magnetic Contactor (MC) 
Reactor or Filterpack connection
With
Without
5A
S-N10
5A
S-N10
10A
S-N10
15A
S-N10
30A
S-N20, S-N21
40A
S-N20, S-N21
50A
S-N25
75A
S-N35
100A
S-N50
5A
S-N10
5A
S-N10
10A
S-N10
10A
S-N10
15A
S-N10
20A
S-N20, S-N21
30A
S-N20, S-N21
40A
S-N20, S-N21
50A
S-N25
With
S-N10
S-N10
S-N10
S-N10
S-N10
S-N20, S-N21
S-N20, S-N21
S-N35
S-N50
S-N10
S-N10
S-N10
S-N10
S-N10
S-N11, S-N12
S-N20, S-N21
S-N20, S-N21
1
S-N20, S-N21
MCCB
INV
M
MCCB
INV
M
5

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