Appendix 2 Instructions For Ul And Cul - Mitsubishi Electric FR-D700 Installation Manuallines

Appendix 2 Instructions for UL and cUL

(Standard to comply with: UL 508C, CSA C22.2 No. 14)
1. General Precaution
The bus capacitor discharge time is 10 minutes. Before starting wiring or inspection, switch power off, wait for more than 10 minutes,
and check for residual voltage between terminal + and - with a meter etc., to avoid a hazard of electrical shock.
2. Installation
The below types of inverter have been approved as products for use in enclosure and approval tests were conducted under the
following conditions. Design the enclosure so that the ambient temperature, humidity and ambience of the inverter will satisfy the
above specifications.
Wiring protection
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection must be provided in
accordance with the National Electrical Code for the U.S. or the Canadian Electrical Code for Canada and any additional codes. As
specified, UL Class T fuses or any faster acting fuse with the appropriate rating must be employed.
FR-D740- -EC
Rated fuse voltage(V)
Without power factor
Fuse Maximum
improving reactor
allowable rating
With power factor
(A)∗
improving reactor
FR-D720S- -EC
Rated fuse voltage(V)
Without power factor
Fuse Maximum
improving reactor
allowable rating
With power factor
(A)∗
improving reactor
∗ Maximum allowable rating by US National Electrical Code.Exact size must be chosen for each installation.
3. Short circuit ratings
200V class
•
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 264 V Maximum.
400V class
•
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 528 V Maximum.
4. Wiring
⋅ The cables used should be 75°C copper cables.
⋅ Tighten the terminal screws to the specified torques.
Undertightening can cause a short or misoperation.
Overtightening can cause the screws and unit to be damaged, resulting in a short or misoperation.
⋅ Use the UL approved round crimping terminals. Crimp the terminals with the crimping tool recommended by the terminal
manufacturer.
012 022 036 050 080
480V or more
6 10 15 20 30
6 10 10 15 25
008 014 025 042 070
240V or more
15 20 20 30 40
15 20 20 20 30
120 160
40 70
35 60
100
60
50
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