Mitsubishi Electric FR-A700 Installation Manuallines page 23

Appendix 2 Instructions for UL and cUL Compliance
(Conforming standard UL 508C, CSA C22.2 No.14)
(1) Installation
This inverter is a 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 1.)
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 Canadian Electrical Code
and any applicable provincial codes.
Provide the appropriate UL and cUL listed Class RK5, Class T or Class L type fuse or UL489 molded case circuit
breaker (MCCB) that is suitable for branch circuit protection in accordance with the table below.
FR-A740- -EC
Rated fuse voltage(V)
Fuse Without power factor
improving reactor
Maximum
allowable
With power factor
improving reactor
rating (A)
Molded case circuit breaker (MCCB)
Maximum allowable rating (A)*
FR-A740- -EC
Rated fuse voltage(V)
Fuse Without power factor
improving reactor
Maximum
allowable
With power factor
improving reactor
rating (A)
Molded case circuit breaker (MCCB)
Maximum allowable rating (A)*
* Maximum allowable rating by US National Electrical Code at SLD rating.
Exact size must be chosen for each installation.
(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, stranded
wires (rated at 75°C) and round ring crimping terminals. Crimp the crimping terminals with the crimping tool
recommended by the terminal maker.
(3) Short circuit ratings
• Model 01800 or less
Suitable For Use in A Circuit Capable Of Delivering Not More Than 100kA rms Symmetrical Amperes, 528V Maximum.
• Model 02160 or more
Suitable For Use in A Circuit Capable Of Delivering Not More Than 100kA rms Symmetrical Amperes, 550V Maximum.
21
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
15 15 15 20 30
02160 02600 03250 03610 04320 04810 05470 06100 06830 07700 08660 09620 10940 12120
⎯ ⎯ ⎯ ⎯ ⎯
300 350 400 500 600
500 600 800 900 1000 1200 1200 1200 1600 1600 2000 2000 2500 3000
480V or more
40 70 80 90 110
35 60 70 90 100
40 60 70 90 100
500V or more
⎯ ⎯ ⎯ ⎯ ⎯
700 800 900 1000 1100 1200 1350 1500 1800
150 175 200 250 300
125 150 175 200 250
150 175 225 250 450
⎯ ⎯ ⎯ ⎯