Fuji Electric FRENIC-HVAC User Manual page 125

Table 4.4 Rated Current of Molded Case Circuit Breaker (MCCB), Residual-Current-Operated Protective
Device (RCD)/Earth Leakage Circuit Breaker (ELCB) and Magnetic Contactor (MC) (continued)
Nominal
Power supply
applied motor
voltage
(HP)
1
2
3
5
7.5
10
15
20
25
30
Three-phase
575 V
40
50
60
75
100
125
150
200
250
300
Note: A box () replaces an alphabetic letter depending on the enclosure.
M (NEMA/UL TYPE 1) or L (NEMA/UL TYPE 12)
- Install the MCCB or RCD/ELCB at the input side of the inverter. They cannot be installed at the
output side of the inverter.
- The above table lists the rated current of MCCBs and RCDs/ELCBs to be used in the power control
panel with an internal temperature of lower than 50°C (122°F). The rated current is factored by a
correction coefficient of 0.85 as the MCCBs' and RCD's/ELCBs' original rated current is specified
when using them in an ambient temperature of 50°C (122°F) or lower. Select an MCCB and/or
RCD/ELCB 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 600 V HIV wires (allowable ambient
temperature: 75°C (167°F)) 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 RCDs/ELCBs with overcurrent protection.
- To protect your power systems from secondary accidents caused by the broken inverter, use an
MCCB and/or RCD/ELCB with the rated current listed in the above table. Do not use an MCCB or
RCD/ELCB with a rating higher than that listed.
Inverter type RCD/ELCB
Rated current (A)
FRN001AR1-5U
FRN002AR1-5U
FRN003AR1-5U
FRN005AR1-5U
FRN007AR1-5U
FRN010AR1-5U
FRN015AR1-5U
FRN020AR1-5U
FRN025AR1-5U
FRN030AR1-5U
FRN040AR1-5U
FRN050AR1-5U
FRN060AR1-5U
FRN075AR1-5U
FRN100AR1-5U
FRN125AR1-5U
FRN150AR1-5U
FRN200AR1S-5U
FRN250AR1S-5U
FRN300AR1S-5U
4-9
4.3 Peripheral Equipment
MCCB,
For input circuit For output circuit
5
10 SC-05
15
20
30
SC-4-0
40 SC-5-1
50
SC-N1
60
75 SC-N2
100 SC-N2S
125 SC-N3
150 SC-N4
175 SC-N5
250 SC-N7
300 SC-N8
350 SC-N11
MC
SC-05
SC-4-0
SC-5-1
SC-N1
SC-N2
SC-N2S
SC-N3
SC-N4
SC-N5
SC-N8
SC-N11