Mitsubishi Electric FR-A700 Instruction Manual page 50

Main circuit connection
Cables and wiring length
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.
400V class
Terminal
Applicable Inverter
Screw
Type
Size
FR-A740-00023 to
M4
00126-EC
FR-A740-00170-EC M4
FR-A740-00250-EC M4
FR-A740-00310-EC M5
FR-A740-00380-EC M5
FR-A740-00470-EC M6
FR-A740-00620-EC M6
FR-A740-00770-EC M6
FR-A740-00930-EC M8
FR-A740-01160-EC M8
FR-A740-01800-EC M8
FR-A740-02160-EC M10
FR-A740-02600-EC M10
FR-A740-03250-EC M10/M12
FR-A740-03610-EC M10/M12
FR-A740-04320-EC M12/M10
FR-A740-04810-EC M12/M10
FR-A740-05470-EC M12/M10
FR-A740-06100-EC M12/M10
FR-A740-06830-EC M12/M10
FR-A740-07700-EC M12/M10
FR-A740-08660-EC M12/M10
FR-A740-09620-EC M12/M10
FR-A740-10940-EC M12/M10
FR-A740-12120-EC M12/M10
Tab. 3-4: Cable size
3 - 12
Crimping
Terminal
Tight-
ening
R/L1,
Torque R/L1,
S/L2,
[Nm] U, V, W S/L2,
T/L3,
T/L3
P1, P
1.5 2-4 2-4
1.5 2-4 2-4
1.5 5.5-4 5.5-4
2.5 5.5-5 5.5-5
2.5 8-5 8-5
4.4 14-6 8-6
4.4 14-6 14-6
4.4 22-6 22-6
7.8 22-8 22-8
7.8 38-8 38-8
7.8 60-8 60-8
14.7 60-10 60-10
14.7 60-10 60-10
14.7 80-10 80-10
14.7 100-10 100-10
24.5 150-12 150-12
24.5 150-12 150-12
100-12 100-12 2 × 100 2 × 100 2 × 100
24.5
100-12 100-12 2 × 100 2 × 100 2 × 125
24.5
150-12 150-12 2 × 125 2 × 125 2 × 125
24.5
150-12 150-12 2 × 150 2 × 150 2 × 150
24.5
C2-200 C2-200 2 × 200 2 × 200 2 × 200
24.5
C2-200 C2-200 2 × 200 2 × 200 2 × 200
24.5
C2-250 C2-250 3 × 250 3 × 250 3 × 250
24.5
C2-200 C2-250 3 × 200 2 × 250 3 × 200 2 × 200 3 × 500 3 × 500 2 × 240 2 × 240 2 × 120
24.5
HIV, etc. [mm²]
Earth
U, V, W P, P1 cable
gauge
2 2 2 2
2 2 3.5 3.5
3.5 3.5 3.5 3.5
3.5 3.5 3.5 8
8 8 8 8
14 8 14 14
14 14 22 14
22 22 22 14
22 22 22 14
38 38 38 22
60 60 60 22
60 60 60 38
60 60 80 38
80 80 80 38
100 100 100 38
125 150 150 38
150 150 150 38
60
60
60
100
100
100
100
Cable Size
AWG PVC, etc. [mm²]
R/L1, R/L1,
S/L2, S/L2,
U, V, W U, V, W
T/L3, T/L3,
P1, P P1, P
14 14 2.5
12 14 2.5
12 12 4
10 10 6
8 8 10
6 8 16
6 6 16
4 4 25
4 4 25
1 2 50
1/0 1/0 50
1/0 1/0 50
3/0 3/0 50
3/0 3/0 70
4/0 4/0 95
250 250 120
300 300 150
2 × 4/0 2 × 4/0 2 × 95
2 × 4/0 2 × 4/0 2 × 95
2 × 250 2 × 250 2 × 120 2 × 120
2 × 300 2 × 300 2 × 150 2 × 150
2 × 350 2 × 350 2 × 185 2 × 185 2 × 95
2 × 400 2 × 400 2 × 185 2 × 185 2 × 95
3 × 500 3 × 500 2 × 240 2 × 240 2 × 120
Wiring
Earth
cable
gauge
2.5 2.5
2.5 4
4 4
6 10
10 10
10 16
16 16
25 16
25 16
50 25
50 25
50 25
50 25
70 35
95 50
120 70
150 95
2 × 95
95
2 × 95
95
120
150