Electrical Motors - Maximum Cable Size and Length vs. Power

Maximum electrical motor cable length vs. power. Three phase 230 V electrical motors and maximum cable length with 3% calculated voltage drop.

Electric Motor Power (kW)	Electric Motor Power (hk)	30 m (98 ft) - Cable Size (mm²)	50 m (164 ft) - Cable Size (mm²)	100 m (328 ft) - Cable Size (mm²)
0.5	0.68	1.5	1.5	1.5
1	1.36	1.5	1.5	1.5
1.5	2.04	1.5	1.5	1.5
2	2.76	1.5	2.5	4
2.5	3.4	1.5	2.5	4
3	4.08	2.5	2.5	6
3.5	4.78	2.5	4	6
4	5.44	2.5	4	6
4.5	6.12	4	4	10
5	6.8	4	4	10
6	8.16	6	6	10
7	9.52	10	10	16
8	10.9	10	10	16
9	12.2	10	10	16
10	13.6	16	16	16
12	16.3	16	16	16
14	19	16	16	25
16	21.8	16	16	25
18	24.5	25	25	35
20	27.2	25	25	35
22	29.9	25	25	35
24	32.6	35	35	35
26	35.4	35	35	35
28	38.1	35	35	50
30	40.8	35	35	50
35	47.6	50	50	50
40	54.4	70	70	70
45	61.2	70	70	70
50	68	70	70	70
55	74.8	70	70	70
60	81.6	95	95	95
65	88.4	120	120	120
70	95.2	120	120	120
75	102	150	120	150
80	109	150	150	150
85	116	185	150	185
90	122	185	185	185
95	129	185	185	185
100	136	240	240	240