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2
INSTALLATION AND WIRING
2.3.6 Peripheral devices
(1) Selection of peripheral devices
Check the capacity of the motor to be used with the inverter you purchased. Appropriate peripheral devices
must be selected according to the capacity.
Refer to the following list and prepare appropriate peripheral devices:
1) 200V class
2) 400V class
Note: 1. Select the NFB according to the inverter capacity (motor capacity.)
For installations in the United States or Canada, the circuit breaker must be inverse time or
instantaneous trip type.
When the breaker on the primary side of the inverter tripped, check for wiring fault (e.g. short
circuit), damage to internal parts of the inverter, etc. Identify the cause of the breaker trip, then
power on the breaker after removing the cause of the trip.
2. Select the electromagnetic switch in parenthesis when using it for emergency stop while driving a
motor.
Inverter Type Motor Output (kW)
Power Supply
Capacity (kVA)
No-fuse Breaker (NFB) or
Earth (ground) Leakage Breaker (ELB)
(Note 1)
Magnetic
Contactor
Standard
With power factor
improving reactor
FR-A520-0.4K 0.4 1.5 30AF 5A 30AF 5A S-N10
FR-A520-0.75K 0.75 2.5 30AF 10A 30AF 10A S-N10
FR-A520-1.5K 1.5 4.5 30AF 15A 30AF 15A S-N10
FR-A520-2.2K 2.2 5.5 30AF 20A 30AF 15A S-N10
FR-A520-3.7K 3.7 9 30AF 30A 30AF 30A S-N20, N21
FR-A520-5.5K 5.5 12 50AF 50A 50AF 40A S-N25
FR-A520-7.5K 7.5 17 100AF 60A 50AF 50A S-N35
FR-A520-11K 11 20 100AF 75A 100AF 75A S-N50
FR-A520-15K 15 28 225AF 125A 100AF 100A S-N65
FR-A520-18.5K 18.5 34 225AF 150A 225AF 125A S-N80
FR-A520-22K 22 41 225AF 175A 225AF 150A S-N95
FR-A520-30K 30 52 225AF 225A 225AF 175A S-N125
FR-A520-37K 37 66 400AF 250A 225AF 225A S-N150
FR-A520-45K 45 80 400AF 300A 400AF 300A S-N180
FR-A520-55K 55 100 400AF 400A 400AF 350A S-N220
Inverter Type
Motor Output
(kW)
Power Supply
Capacity (kVA)
No-fuse Breaker (NFB) or
Earth (ground) Leakage Breaker (ELB)
(Note 1)
Magnetic
Contactor
Standard
With power factor
improving reactor
FR-A540-0.4K 0.4 1.5 30AF 5A 30AF 5A S-N10
FR-A540-0.75K 0.75 2.5 30AF 5A 30AF 5A S-N10
FR-A540-1.5K 1.5 4.5 30AF 10A 30AF 10A S-N10
FR-A540-2.2K 2.2 5.5 30AF 15A 30AF 10A S-N10
FR-A540-3.7K 3.7 9 30AF 20A 30AF 15A S-N20, N21
FR-A540-5.5K 5.5 12 30AF 30A 30AF 20A S-N20, N21
FR-A540-7.5K 7.5 17 30AF 30A 30AF 30A S-N20, N21
FR-A540-11K 11 20 50AF 50A 50AF 40A S-N20 (N25) (Note2)
FR-A540-15K 15 28 100AF 60A 50AF 50A S-N25 (N35) (Note2)
FR-A540-18.5K 18.5 34 100AF 75A 100AF 60A S-N35 (N50) (Note2)
FR-A540-22K 22 41 100AF 100A 100AF 75A S-N50
FR-A540-30K 30 52 225AF 125A 100AF 100A S-N65
FR-A540-37K 37 66 225AF 150A 225AF 125A S-N80
FR-A540-45K 45 80 225AF 175A 225AF 150A S-N80 (N95) (Note2)
FR-A540-55K 55 100 225AF 200A 225AF 175A S-N125
