Mitsubishi Electric 700 Series Installation Manualline page 21

A.2 Instructions for UL and cUL
(UL 508C, CSA C22.2 Nr.14)
A.2.1 Installation
The inverter FR-A 740 EC is UL-listed as a product for use in an enclosure.
Design an enclosure so that the inverter ambient temperature, humidity and atmosphere satisfy the specifications. (Refer to
page 2
)
Wiring protection
For installation in the United States, branch circuit protection must be provided in accordance with the National Electrical
Code and any applicable provincial codes.
For installation in Canada, branch circuit protection must be provided in accordance with the Canada Electrical Code and
any applicable provincial codes.
Provide the appropriate UL Listed Class RK5 oder class T fuses that are suitable for branch circuit protection in
accordance with the table below.
FR-A 740- -EC
Rated voltage [V]
Without power factor
Rated
improving reactor
current
With power factor
[A]
improving reactor
FR-A 740- -EC
Rated voltage [V]
Without power factor
Rated
improving reactor
current
With power factor
[A]
improving reactor
A.2.2 Wiring of the power supply and motor
For wiring the input (R/L1, S/L2, T/L3) and output (U, V, W) terminals of the inverter, use the UL-listed copper wires (rated
at 75°C) and round crimping terminals. Crimp the crimping terminals with the crimping tool recommended by the terminal
maker.
A.2.3 Short circuit ratings
01800 or less
Suitable for use in a circuit capable of delivering not more than 100kA rms symmetrical amperes, 528V maximum.
02160 or more
Suitable for use in a circuit capable of delivering not more than 100kA rms symmetrical amperes, 550V maximum.
00023 00038 00052 00083 00126 00170 00250 00310 00380 00470 00620 00770 00930 01160 01800
6 10 15 20 30
6 10 10 15 25
02160 02600 03250 03610 04320 04810 05470 06100 06830 07700 08660 09620 10940 12120
— — — — —
300 350 400 500 600
480V or more
40 70 80 90 110
35 60 70 90 100
500V or more
— — — — —
700 800 900 1000 1100 1200 1350 1500 1800
APPENDIX
150 175 200 250 300
125 150 175 200 250
— — — —
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