23
(Conforming standard UL 508C, CSA C22.2 No.14)
(1) Installation
This inverter is a UL / cUL Listed open type device for use inside an enclosure, or enclosed Type 1 device with a
suitably rated enclosure.
For open type, design an enclosure so that the inverter surrounding air temperature, humidity and atmosphere satisfy
the specifications.
(Refer to page 1.)
The following UL / cUL Listed FR-F700 Series Inverters employ a UL Type 1 Enclosure - Suitable for Installation in a
Compartment Handling Conditioned Air (Plenum):
Models FR-F720-00046, -00077, -00105, -00167, -00250, -00340, -00490, 00630, -00770, -00930, followed by -NA
suffix.
Models FR-F740-00023, -00038, -00052, -00083, -00126, -00170, -00250, -00310, -00380, -00470, -00620, followed
by -NA suffix.
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.
Note, the Class L fuses can be used if the applicable current rating is larger than 600A.
* Maximum allowable rating by US National Electrical Code at SLD rating.
Exact size must be chosen for each installation.
Appendix 2 Instructions for UL and cUL Compliance
FR-F720-
-NA
00046 00077 00105 00167 00250 00340 00490 00630 00770 00930 01250 01540 01870 02330
Rated fuse voltage(V)
240V or more
Fuse
maximum
allowable
rating (A)*
Without power
factor improving
reactor
15
20
30
40
60
80
150
175
200
225
300
350
400
500
With power factor
improving reactor
15
20
20
30
50
70
125
150
200
200
250
300
350
400
Molded case circuit breaker
(MCCB)
maximum allowable rating (A)*
15
15
25
40
60
80
110
150
175
225
300
350
450
500
FR-F720-
-NA
03160 03800 04750
Rated fuse voltage(V)
240V or more
Fuse
maximum
allowable
rting (A)*
Without power
factor improving
reactor
⎯
⎯
⎯
With power factor
improving reactor
500
600
700
Molded case circuit breaker
(MCCB)
maximum allowable rating (A)*
700
900 1000
FR-F740-
-NA
00023 00038 00052 00083 00126 00170 00250 00310 00380 00470 00620 00770 00930 01160
Rated fuse voltage(V)
480V or more
Fuse
maximum
allowable
rating (A)*
Without power
factor improving
reactor
6
10
15
20
30
40
70
80
90
110
150
175
200
250
With power factor
improving reactor
6
10
10
15
25
35
60
70
90
100
125
150
175
200
Molded case circuit breaker
(MCCB)
maximum allowable rating (A)*
15
15
15
20
30
40
60
70
90
100
150
175
225
250
FR-F740-
-NA
01800 02160 02600 03250 03610 04320 04810 05470 06100 06830 07700 08660 09620 10940 12120
Rated fuse voltage(V)
500V or more
Fuse
maximum
allowable
rating (A)*
Without power
factor improving
reactor
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
With power factor
improving reactor
300
350
400
500
600
700
800
900 1000 1100 1200 1350 1500 1800 2000
Molded case circuit breaker
(MCCB)
maximum allowable rating (A)*
450
500
600
800
900 1000 1200 1200 1200 1600 1600 2000 2000 2500 3000