18
Main circuit terminal specifications
2.2.3
Cables and wiring length
(1) Applicable cable size
Select the recommended cable size to ensure that a voltage drop will be 2% max.
If the wiring distance is long between the inverter and motor, a main circuit cable voltage drop will cause the motor torque to
decrease especially at the output of a low frequency.
The following table indicates a selection example for the wiring length of 20m.
Three-phase 200V class (when input power supply is 220V)
Three-phase 400V class (when input power supply is 440V)
Single-phase 200V class (when input power supply is 220V)
Single-phase 100V class (when input power supply is 100V)
Applicable Inverter
Model
Terminal
Screw
Size
Tightening
Torque
N
·
m
Crimping
Terminal
Cable Size
HIV Cables, etc. (mm
2
)
AWG
PVC Cables, etc. (mm
2
)
R/L1
S/L2
T/L3
U, V, W
R/L1
S/L2
T/L3
U, V, W Earthing
cable
R/L1
S/L2
T/L3
U, V, W
R/L1
S/L2
T/L3
U, V, W Earthing
cable
FR-E720-0.1K(SC) to
0.75K(SC)
M3.5
1.2
2-3.5
2-3.5
2
2
2
14
14
2.5
2.5
2.5
FR-E720-1.5K(SC),
2.2K(SC)
M4
1.5
2-4
2-4
2
2
2
14
14
2.5
2.5
2.5
FR-E720-3.7K(SC)
M4
1.5
5.5-4
5.5-4
3.5
3.5
3.5
12
12
4
4
4
FR-E720-5.5K(SC)
M5
2.5
5.5-5
5.5-5
5.5
5.5
5.5
10
10
6
6
6
FR-E720-7.5K(SC)
M5
2.5
14-5
8-5
14
8
5.5
6
8
16
10
6
FR-E720-11K(SC)
M5
2.5
14-5
14-5
14
14
14
6
6
16
16
16
FR-E720-15K(SC)
M6(M5)
4.4
22-6
22-6
22
22
14
4
4
25
25
16
Applicable Inverter
Model
Terminal
Screw
Size
Tightening
Torque
N
·
m
Crimping
Terminal
Cable Size
HIV Cables, etc. (mm
2
)
AWG
PVC Cables, etc. (mm
2
)
R/L1
S/L2
T/L3
U, V, W
R/L1
S/L2
T/L3
U, V, W Earthing
cable
R/L1
S/L2
T/L3
U, V, W
R/L1
S/L2
T/L3
U, V, W Earthing
cable
FR-E740-0.4K(SC) to
3.7K(SC)
M4
1.5
2-4
2-4
2
2
2
14
14
2.5
2.5
2.5
FR-E740-5.5K(SC)
M4
1.5
5.5-4
2-4
3.5
2
3.5
12
14
4
2.5
4
FR-E740-7.5K(SC)
M4
1.5
5.5-4
5.5-4
3.5
3.5
3.5
12
12
4
4
4
FR-E740-11K(SC)
M4
1.5
5.5-4
5.5-4
5.5
5.5
8
10
10
6
6
10
FR-E740-15K(SC)
M5
2.5
8-5
8-5
8
8
8
8
8
10
10
10
Applicable Inverter
Model
Terminal
Screw
Size
Tightening
Torque
N
·
m
Crimping
Terminal
Cable Size
HIV Cables, etc. (mm
2
)
AWG
PVC Cables, etc. (mm
2
)
R/L1
S/L2 U, V, W
R/L1
S/L2 U, V, W
Earthing
cable
R/L1
S/L2 U, V, W
R/L1
S/L2 U, V, W
Earthing
cable
FR-E720S-0.1K(SC) to
0.4K(SC)
M3.5
1.2
2-3.5
2-3.5
2
2
2
14
14
2.5
2.5
2.5
FR-E720S-0.75K(SC)
M4
1.5
2-4
2-4
2
2
2
14
14
2.5
2.5
2.5
FR-E720S-1.5K(SC)
M4
1.5
2-4
2-4
2
2
2
14
14
2.5
2.5
2.5
FR-E720S-2.2K(SC)
M4
1.5
5.5-4
2-4
3.5
2
2
12
14
4
2.5
2.5
Applicable Inverter
Model
Terminal
Screw
Size
Tightening
Torque
N
·
m
Crimping
Terminal
Cable Size
HIV Cables, etc. (mm
2
)
AWG
PVC Cables, etc. (mm
2
)
R/L1
S/L2 U, V, W
R/L1
S/L2 U, V, W
Earthing
cable
R/L1
S/L2 U, V, W
R/L1
S/L2 U, V, W
Earthing
cable
FR-E710W-0.1K to 0.4K
M3.5
1.2
2-3.5
2-3.5
2
2
2
14
14
2.5
2.5
2.5
FR-E710W-0.75K
M4
1.5
5.5-4
2-4
3.5
2
2
14
14
2.5
2.5
2.5
Summary of Contents for FR-E710W-0.1K
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