Mitsubishi Electric FR-A862-E Instruction Manual page 15

Peripheral devices
2.1.2
Peripheral devices
Selecting the converter unit (FR-CC2)
Select the capacity of the FR-CC2 converter unit according to the connected motor capacity.
Converter
unit Model
FR-CC2-[ ]
FR-A862-[ ]
C355K 05450
C400K 06470
C560K 08500

The motor capacity indicated is the maximum capacity applicable for use of the 4-pole standard motor.
Selecting the breaker/magnetic contactor
Check the model of the inverter and the converter unit you purchased. Appropriate peripheral devices must be selected
according to the capacity.
Refer to the following table to prepare appropriate peripheral devices.
Motor
Applicable converter
output
model
(kW)

280 FR-CC2-C355K
355 FR-CC2-C400K
450 FR-CC2-C560K

Assumes the use of a Mitsubishi Electric 4-pole standard motor with the power supply voltage of 575 VAC 50 Hz.

Select an MCCB according to the power supply capacity.
Install one MCCB per converter.
(For the use in the United States or Canada, refer to

The 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 stops during motor driving, the electrical durability is 25 times.
If using an MC for emergency stop during driving the motor, select an MC regarding the converter unit input side current as JEM 1038-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 rated motor current as JEM 1038-AC-3 class rated current.
NOTE
• When the converter unit capacity is larger than the motor capacity, select an MCCB and a magnetic contactor according to
the converter unit model, and select cables and reactors according to the motor output.
• When the breaker on the converter unit's input side trips, check for the wiring fault (short circuit), damage to internal parts of
the inverter and the converter unit, etc. The cause of the trip must be identified and removed before turning ON the power of
the breaker.
14
INSTALLATION AND WIRING
Inverter
Rated current
(A)
SLD 545
LD 496
ND 402
HD 304
SLD 647
LD 589
ND 496
HD 402
SLD 850
LD 773
ND 663
HD 589
Applicable inverter
model
FR-A862-05450
FR-A862-06470
FR-A862-08500
Motor capacity
(kW)

400
355
280
220
450
400
355
280
630
560
450
400
Molded case circuit breaker (MCCB)
earth leakage circuit breaker (ELB)
(NF, NV type)
600 A
800 A
1000 A
page 93 to select an appropriate fuse.)

or
373 A
469 A
617 A
MCCB Converter unit
MCCB Converter unit
Input-side
magnetic
contactor

INV M
INV M