Omron VARISPEED E7 User Manual page 50

Determine the wire size for the main circuit so that line voltage drop is within 2% of the rated voltage.
Line voltage drop is calculated as follows:
Line voltage drop (V) =
IMPORTANT
Table 2.5 Tightening Torques for Cable Gland
Tightening Torque (Nm)
Cable Gland Size
Plastic
M16 3.0
M20 6.0
M25 8.0
M32 10.0
M40 13.0
M50 15.0
3 x wire resistance (W/km) x wire length (m) x current (A) x 10
Wiring Main Circuit Terminals
Metal
10.0
12.0
12.0
18.0
18.0
20.0
-3
2-13