9-1
Chapter 9 LIST OF PERIPHERAL EQUIPMENT AND OPTIONS
The table below lists the main peripheral equipment and options that are connected to the
FRENIC-Multi. Use them in accordance with your system requirements.
For details, refer to the FRENIC-Multi User's Manual, Chapter 6 "SELECTING PERIPHERAL
EQUIPMENT."
Name of
peripheral
equipment
Function and application
MCCBs are designed to protect the power circuits between the power control
board and inverter’s main terminals (L1/R, L2/S and L3/T for three-phase input
power supply, L1/L and L2/N for single-phase input power supply) from
overload or short-circuit which in turn prevents secondary disasters caused by
the inverter malfunctioning.
RCDs/GFCIs function in the same way as MCCBs. Use the MCCBs and
RCDs/GFCIs that satisfy the recommended rated current listed below.
Note 1) A box () in the above table replaces S or E depending on the enclosure.
Select the MCCB or RCD/GFCI with appropriate breaking capacity according
to the power supply capacity.
When connecting the inverter to the power supply, add a recommended
molded case circuit breaker (MCCB) or residual-current-operated
protective device (RCD)/a ground fault circuit interrupter (GFCI) (with
overcurrent protection) in the path of power supply. Do not use the
devices with the rated current out of the recommenced range.
Fire could occur.
Main peripheral equipment
Molded case
circuit breaker
(MCCB)
Residual-current-
operated
protective device
(RCD)
/Ground fault
circuit interrupter
(GFCI)*
1
*
1
with
overcurrent
protection
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