190
(Conforming standard UL 508C, CSA C22.2 No.14)
(1) Installation
This inverter is UL-listed as a product for use in an enclosure.
Design an enclosure so that the inverter surrounding air temperature, humidity and atmosphere satisfy the
specifications.
(Refer to page 177.)
Wiring protection
For branch circuit protection, use UL 489 Molded Case Circuit Breakers (MCCB) with the appropriate rating or UL
Listed fuses, Type RK5, Class T any faster acting fuse class in accordance with the National Electrical Code (NEC) or
any other applicable code requirements.
* Maximum allowable rating by US National Electrical Code.
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) Wiring of control circuit
Use a 16-18AWG cupper cable and perform wiring without using crimping terminals.
(4) Short circuit ratings
•
200V class
Suitable For Use in A Circuit Capable Of Delivering Not More Than 100kA rms Symmetrical Amperes, 264V Maximum.
•
400V class
Suitable For Use in A Circuit Capable Of Delivering Not More Than 100kA rms Symmetrical Amperes, 528V Maximum.
Appendix 2 Instructions for UL and cUL Compliance
FR-A721-
K
5.5
7.5
11
15
18.5
22
30
37
45
55
Rated fuse voltage(V)
240V or more
Fuse maximum allowable rating (A)*
70
125
150
200
200
250
300
350
400
500
Molded case circuit breaker (MCCB)
maximum allowable rating (A)*
60
80
110
150
175
225
250
350
400
500
FR-A741-
K
5.5
7.5
11
15
18.5
22
30
37
45
55
Rated fuse voltage(V)
480V or more
Fuse maximum allowable rating (A)*
35
60
70
90
100
125
150
175
200
250
Control
circuit
terminal
Summary of Contents for FR-A741-11K
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