5.9.2 Recommendation on Cable Dimensioning
1. Depends on the power of a frequency converter.
2. In table column “Nominal Current of Fuse [A]”, read corresponding information for
fuse.
1. The cable dimensions for inputs and outputs are based on supply
voltages of 1P 200 VAC / 3P 380 VAC.
2. For torque information, see the table below.
Power [kW]
Input side
Output
side
Screw torque
for power
cable terminals
[Nm / lb-in]
(screw size)
PE
Nominal current
of Fuse [A]
Cable size
[mm
2
/ AWG]
Cable size
[mm
2
/ AWG]
Cable size
[mm
2
/ AWG]
Torque
[Nm / lb-in]
(screw size)
1-phase 200 VAC class
0.4 10 2.0 / 14 2.0 / 14 0.8 / 7 (M3) 6 / 8 0.8 / 7 (M3)
0.75 16 2.0 / 14 2.0 / 14 0.8 / 7 (M3) 6 / 8 0.8 / 7 (M3)
1.5 20 2.0 / 14 2.0 / 14 0.8 / 7 (M3) 6 / 8 0.8 / 7 (M3)
2.2 25 3.5 / 12 3.5 / 12 1.2 / 10 (M4) 6 / 8 1.2 / 10 (M4)
3-phase 400 VAC class
0.4 6 2.0 / 14 2.0 / 14 0.8 / 7 (M3) 6 / 8 0.8 / 7 (M3)
0.75 10 2.0 / 14 2.0 / 14 0.8 / 7 (M3) 6 / 8 0.8 / 7 (M3)
1.5 10 2.0 / 14 2.0 / 14 0.8 / 7 (M3) 6 / 8 0.8 / 7 (M3)
2.2 16 2.0 / 14 2.0 / 14 1.2 / 10 (M4) 6 / 8 1.2 / 10 (M4)
4.0 20 2.0 / 14 2.0 / 14 1.2 / 10 (M4) 6 / 8 1.2 / 10 (M4)
Fig.5-3: Fuse and cable dimensions
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
Bosch Rexroth AG
Mounting and Installation
35/235