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Ecowatt
Drive K320 series
®
D.4.3 Recommended cable sizes
VFD model
R, S, T U, V,
K320-2R2P-4
K320-003P-4
K320-5R5P-4
K320-7R5P-4
K320-011P-4
K320-015P-4
K320-018P-4
K320-022P-4
K320-030P-4
K320-037P-4
K320-045P-4
K320-055P-4
K320-075P-4
K320-090P-4
K320-110P-4
K320-132P-4
K320-160P-4
K320-185P-4
K320-200P-4
K320-220P-4
K320-250P-4
K320-280P-4
K320-315P-4
2×150/2×150
K320-355P-4
2×150/2×185
K320-400P-4
2×185/3×150
K320-450P-4
K320-500P-4
Note:
Cables of the sizes recommended for the main circuit can be used in scenarios where the
ambient temperature is lower than 40°C, the wiring distance is shorter than 100 m, and the
current is the rated current.
The terminals P1, (+), PB, and (-) are used to connect to DC reactors and brake accessories.
Table D.1 AC 3PH 380V(-15%)–440V(+10%)
Recommended cable size (mm²)
PE
W
1.0/1.0
1.0/1.0
1.0/1.5
1.0/1.5
1.5/2.5
1.5/2.5
2.5/4
2.5/4
4/6
4/6
6/10
6/10
10/10
10/10
10/10
10/10
10/16
10/16
16/25
16/16
25/25
16/16
25/35
16
35/50
16/25
50/70
25/35
70/95
35/50
95/95
50/50
95/150
50/70
150/185
70/95
185/185
95/95
185/2×95
95/95
2×95/2×95
95/95
2×95/2×150
95/150
150/150
150/185
185/2×120
3×150
2×120/2×150
3×185
2×150/2×150
Optional peripheral accessories
P1 (+)
PB, (+) (-)
1.0/1.0
1.0/1.0
1.0/1.5
1.0/1.5
1.5/2.5
1.5/2.5
2.5/4
2.5/4
4/6
4/6
6/10
6/10
10/10
10/10
10/10
10/10
10/16
10/16
116/25
16/25
25/25
25/25
25/35
25/35
35/50
35/50
50/70
50/70
70/95
70/95
95/95
95/95
95/150
95/150
150/185
150/185
185/185
185/185
185/2×95
185/2×95
2×95/2×95
2×95/2×95
2×95/2×150 2×95/2×150
2×150/2×150 2×150/2×150
2×150/2×185 2×150/2×185
2×1853×150 2×1853×150
3×150
3×150
3×185
3×185
-348-
Screw
Terminal
Tightening
screw
torque (Nm)
M4
1.2–1.5
M4
1.2–1.5
M4
1.2–1.5
M5
2–2.5
M5
2–2.5
M5
2–2.5
M5
2–2.5
M5
2–2.5
M6
4–6
M6
4–6
M6
4–6
M8
9–11
M8
9–11
M8
9–11
M10
18–23
M10
18–23
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
M12
31–40
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