3
Inverter and peripheral devices
1
1.2.1
Peripheral devices
Check the inverter type 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:
200V class
400V class
Motor Output
(kW)
Applicable Inverter Type
Breaker Selection
Input Side Magnetic Contactor
5.5
FR-A721-5.5K
50AF 40A
S-N20, N21
7.5
FR-A721-7.5K
50AF 50A
S-N25
11
FR-A721-11K
100AF 75A
S-N35
15
FR-A721-15K
100AF 100A
S-N50
18.5
FR-A721-18.5K
225AF 125A
S-N50
22
FR-A721-22K
225AF 150A
S-N65
30
FR-A721-30K
225AF 175A
S-N80
37
FR-A721-37K
225AF 225A
S-N125
45
FR-A721-45K
400AF 300A
S-N150
55
FR-A721-55K
400AF 350A
S-N180
Motor Output
(kW)
Applicable Inverter Type
Breaker Selection
Input Side Magnetic Contactor
5.5
FR-A741-5.5K
30AF 20A
S-N11, N12
7.5
FR-A741-7.5K
30AF 30A
S-N20
11
FR-A741-11K
50AF 40A
S-N20
15
FR-A741-15K
50AF 50A
S-N20
18.5
FR-A741-18.5K
100AF 60A
S-N25
22
FR-A741-22K
100AF 75A
S-N25
30
FR-A741-30K
100AF 100A
S-N50
37
FR-A741-37K
225AF 125A
S-N50
45
FR-A741-45K
225AF 150A
S-N65
55
FR-A741-55K
225AF 175A
S-N80
*1
Selections for use of the Mitsubishi 4-pole standard motor with power supply voltage of 200VAC/400VAC 50Hz.
*2
Select the MCCB according to the inverter power supply capacity.
Install one MCCB per inverter.
For installations in the United States or Canada, use the appropriate UL and cUL listed class RK5, class T
type fuse or UL489 molded case circuit breaker (MCCB).
(Refer to page 190.)
*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.
REMARKS
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
IM
IM
Summary of Contents for FR-A741-11K
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