Fuji Electric frenic mini series - Magnetic Contactor (MC)

6.3 Peripheral Equipment
6-9
Chap. 6 SELECTING PERIPHERAL EQUIPMENT
Table 6.5 Rated Current of Molded Case Circuit Breaker/Ground-Fault Circuit Interrupter and
Magnetic Contactor
w/ DCR w/o DCR w/ DCR w/o DCR
1/8
FRNF12C1

-2U
1/4
FRNF25C1

-2U
5 (6)
1/2
FRNF50C1

-2U
1
FRN001C1

-2U
10 SC-05 SC-05
2
FRN002C1

-2U
15 (16)
3
FRN003C1

-2U
20 (25)
5
FRN005C1

-2U
20 (25) 30 (35) SC-5-1
1/2
FRNF50C1

-4U
1
FRN001C1

-4U
2
FRN002C1

-4U
10 SC-05 SC-05 SC-05
3
FRN003C1

-4U
15 (16)
5
FRN005C1

-4U
10 20 (25)
1/8
FRNF12C1

-7U
1/4
FRNF25C1

-7U
5 (6)
1/2
FRNF50C1

-7U
10 SC-05
1
FRN001C1

-7U
10 15 (16)
2
FRN002C1

-7U
15 (16) 20 (25)
3
FRN003C1

-7U
20 (25) 30 (35) SC-5-1
SC-05SC-05
SC-05
5 (6)
10
5 (6)
5 (6)
5 (6)
Power
supply
voltage
Three-
phase
230 V
Three-
phase
460 V
Single-
phase
230 V
Magnetic contactor type
MC2 (for output circuit)
Applicable
motor
rating
(HP)
MCCB, GFCI
Rated current (A)
Magnetic contactor type
MC1 (for input circuit)
DC reactor (DCR)
Inverter type
DC reactor (DCR)
- The above table lists the rated current of MCCBs and GFCIs to be used in the power control cabinet with an
internal temperature of lower than 50qC (120qF). The rated current is factored by a correction coefficient of
0.85 as the MCCBs' and GFCIs' original rated current is specified when using them in an ambient
temperature of 40qC (104qF) or lower. Select an MCCB and/or GFCI suitable for the actual short-circuit
breaking capacity needed for your power systems.
- For the selection of the MC type, it is assumed that the 600V HIV (allowable ambient temperature:
75
q
C (167
q
F)) wires for the power input/output of the inverter are used. If an MC type for another class
of wires is selected, the wire size suitable for the terminal size of both the inverter and the MC type
should be taken into account.
- Use GFCIs with overcurrent protection.
- To protect your power systems from secondary accidents caused by the broken inverter, use an MCCB
and/or GFCI with the rated current listed in the above table. Do not use an MCCB or GFCI with a rating
higher than that listed.
Notes: 1) A box (

) in the above table replace S or E depending on enclosure.
2) Values in parentheses ( ) in the above table denote rated currents for the European version.