3. Installation and Wiring
3-11
Wire Size (Cabling standards of IEC 60227-3 or UL508C)
mm2 AWG or kcmil
Inverter Capacity
R, S, T U, V, W R, S, T U, V, W
132 kW 185 185 350 350
160 kW 240 240 500 500
220 kW
400 400 800 800
280 kW
2 X 240 2 X 240 2 X 500 2 X 500
315 kW
2 X 240 2 X 240 2 X 500 2 X 500
375 kW
2 X 300 2 X 300 2 X 600 2 X 600
1) Apply the rated torque to terminal screws. Loose screws can cause of short circuit or malfunction.
Tighting the screws too much can damage the terminals and cause a short circuit or malfunction.
② Grounding Wire Size and Caution to be taken
z Be sure to ground the motor and the inverter to prevent electric shock injury. (200V class:
ground impedance 100Ω, 400V class: ground impedance 10Ω)
z Connect the inverter ground to the ground terminal exclusively used for the inverter. Do not use
the case of inverter of sash screw for ground.
z It is strongly recommended that as thick a grounding wire as possible be used and wire be short.
Ground wire size( mm²)
Motor Capacity
200V Class 400V Class
2.2 ~ 3.7 kW 4 2.5
5.5 ~ 7.5 kW 6 4
11 ~ 15 kW 16 10
18.5 ~ 22 kW 25 16
30 ~ 37 kW 25 16
45 ~ 75 kW - 25
90 ~ 132 kW - 35
160 ~ 220 kW - 95
280 ~ 315 kW - 185
375 kW - 240
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