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OUTLINE
Precautions for selecting peripheral devices
1.3.2 Peripheral device list
(1) Circuit breakers and magnetic contactors
Check the model of the converter and select peripheral devices according to the capacity. Refer to the table below to prepare
appropriate peripheral devices.
200V class
400V class
Select an MCCB according to the power supply capacity.
Install one MCCB per converter.
For the use in the United States or Canada, provide the appropriate UL and cUL listed fuse that is
suitable for branch circuit protection. (Refer to page 191)
Magnetic contactor is selected based on the AC-1 class.The electrical durability of magnetic contactor is 100,000 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.
Converter Model
Moulded Case Circuit Breaker (MCCB)
or Earth Leakage Circuit Breaker (ELB)
(NF, NV type)
Magnetic Contactor
(MC)
FR-HC2-7.5K 50A S-N25
FR-HC2-15K 75A S-N50
FR-HC2-30K 150A S-N80
FR-HC2-55K 300A S-N180
FR-HC2-75K 350A S-N300
Converter Model
Moulded Case Circuit Breaker (MCCB)
or Earth Leakage Circuit Breaker (ELB)
(NF, NV type)
Magnetic Contactor
(MC)
FR-HC2-H7.5K 30A S-N18
FR-HC2-H15K 50A S-N20
FR-HC2-H30K 75A S-N35
FR-HC2-H55K 150A S-N80
FR-HC2-H75K 175A S-N95
FR-HC2-H110K 250A S-N180
FR-HC2-H160K 400A S-N300
FR-HC2-H220K 500A S-N400
FR-HC2-H280K 700A S-N600
FR-HC2-H400K 900A S-N800
FR-HC2-H560K 1500A S-N400 (three in parallel)
NOTE
When the MCCB on the converter input side trips, check for the wiring fault (short circuit), damage to internal parts of
the converter, etc. Identify the cause of the trip, then remove the cause and power ON the breaker.
MCCB
MCCB
IM
IM
Inverter
Inverter
Converter
Converter
HC2.book 11 ページ ２０１２年１１月１９日 月曜日 午前１０時５２分