Mitsubishi Electric FR-CC2-P, Instruction Manual

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174
APPENDIX
• When the output side of the 12-phase transformer is not earthed (grounded), the power supply system of the converter unit
is used as an isolated-neutral (IT) system. Install an insulation monitoring device (IMD) for protection against insulation
failure.
• To use the system as a TN-C system, earth a neutral point on the output side of the transformer (wye connection) and
connect all devices to the protective conductor (PEN).

Wiring protection
• 6-phase rectification
Provide a Class T, Class J, Class CC, or Class L fuse.

Maximum allowable rating by US National Electrical Code. Exact size must be chosen for each installation.
• 12-phase rectification
Connection diagram
Provide the appropriate fuse in accordance with the table below
 Short circuit ratings
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 500 V Maximum.
 EU RoHS Directive
We have declared that our converter units are compliant to the EU RoHS Directive (2011/65/EU) and affix the CE marking on
the converter units.
FR-CC2-[]-P H400K H450K H500K H560K
Rated fuse voltage (V) 500 V or more
Fuse maximum allowable rating (A)

1350 1500 1800 1800
Converter model Fuse type Model Manufacturer Rating
FR-CC2-H400K-P
UL
Recognized
High Speed
170M6013, 170M6113
Bussmann
900 A, 700 VAC
FR-CC2-H450K-P 170M6014, 170M6114 1000 A, 700 VAC
FR-CC2-H500K-P 170M6015, 170M6115 1100 A, 700 VAC
FR-CC2-H560K-P 170M6016, 170M6116 1250 A, 700 VAC
12-phase rectifier
power transformer
FR-CC2-P FR-CC2-P
Main power
supply side
L1
L2
L3
R/L1
S/L2
T/L3
R2/L12
S2/L22
T2/L32
12-phase rectifier
power transformer
PEN PEN
Main power
supply side
L1
L2
L3
R/L1
S/L2
T/L3
R2/L12
S2/L22
T2/L32
Wiring example 1 Wiring example 2
12-phase rectifier
power transformer
Fuse
Fuse
Fuse
Fuse
R/L1
S/L2
T/L3
R2/L12
S2/L22
T2/L32
R/L1
S/L2
T/L3
R2/L12
S2/L22
T2/L32
FR-CC2-P (master)
FR-CC2-P (slave)