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(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 P/+ and N/- with a meter etc., to avoid a hazard of electrical shock.
2. Installation
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 surrounding air temperature, humidity and ambience of the inverter will satisfy the above
specifications.
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. As specified on page 49, UL Class T fuses or any faster acting fuse with the appropriate rating or Listed
UL 489 Molded Case Circuit Breaker (MCCB) must be employed.
3.Short circuit ratings
• 100V class
Suitable For Use in A Circuit Capable of Delivering Not More Than 100 kA rms Symmetrical Amperes, 132 V Maximum.
• 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
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 crimping terminals. Crimp the crimping terminals with the crimping tool recommended by the terminal
maker.
5. Motor overload protection
When using the electronic thermal relay function as motor overload protection, set the rated motor current to Pr. 9 "Electronic thermal
O/L relay". (Refer to page 49)
Appendix 2 Instructions for UL and cUL