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INSTALLATION AND WIRING
39
2.3.7 Instructions for compliance with U.S. and Canadian Electrical Codes
(Standard to comply: UL 508C)
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1
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Installation
The above types of inverter have been approved as products for use in enclosure and approval tests were
conducted under the following conditions.
•
••
• 200V class
Inverter Model
Minimum Enclosure Volume
(Ratio of enclosure volume to
inverter volume)
Air Vent Area
(Ratio of air vent area in
enclosure top and bottom to
enclosure surface area)
External Cooling Fan
(The following number of
fans of 100cfm wind pressure
are installed 10cm above the
inverter top)
FR-F520-0.75K 150 5.8 0
FR-F520-1.5K 245 1.5 1
FR-F520-2.2K 245 1.5 1
FR-F520-3.7K 245 1.5 1
FR-F520-5.5K 245 1.5 1
FR-F520-7.5K 245 1.5 1
FR-F520-11K 245 1.5 1
FR-F520-15K 370 2.6 2
FR-F520-18.5K 370 2.6 2
FR-F520-22K 370 2.6 2
FR-F520-30K
2
FR-F520-37K
2
FR-F520-45K
2
FR-F520-55K
2
•
••
• 400V class
Design the enclosure so that the ambient temperature, humidity and ambience of the inverter will satisfy the
above specifications. (Refer to page 187)
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Branch circuit protection
For installation in United States, branch circuit protection must be provided, in accordance with the National
Electrical Code and any applicable local codes.
For installation in Canada, branch circuit protection must be provided in accordance with the Canada
Electrical Code and any applicable provincial codes.
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Short circuit ratings
•
••
• 200V class
Suitable For Use in A Circuit Capable of Delivering Not More Than 5 or 10kA rms Symmetrical Amperes, 230
or 500 Volts Maximum.
•
••
• 400V class
Suitable For Use in A Circuit Capable of Delivering Not More Than 10kA rms Symmetrical Amperes, 500
Volts Maximum.
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Wiring of the power supply and motor
Screw the cables wired to the input (R, S, T) <L
1
, L
2
, L
3
> and output (U, V, W) terminals and control circuit of
the inverter to the specified tightening torque using UL-recognized, 75° or higher rated copper wires and
round crimping terminals. Crimp the crimping terminals with the crimping tool recommended by the terminal
maker.