CABLE SELECTION FOR DOL AND STAR DELTA STARTER OF MOTOR

Electrical Basic Concepts

CHART FOR CABLE SELECTION FOR DOL AND STAR DELTA STARTER OF MOTOR 

The Below Table is to for Select cable of Aluminum or Copper for different Type of Starter from 0.37 KW to 143 KW.

Cable Selection Chart	Motor Output		Full Load Current		Direct Online Starter				Star Delta Starter
	KW	HP	Line Amp	Phase Amp	Overload Relay Range	Max. Backup Fuse	Recommended Cable size in Sq. mm Al	Recommended Cable size in Sq. mm CU	Overload Relay Range	Max. Backup Fuse	Recommended Cable size in suply side in Sq. mm Al	Recommended Cable size in suply side in Sq. mm Cu	Recommended Cable size in motor side in Sq. mm Al	Recommended Cable size in motor side in Sq. mm Cu
	0.37	0.5	1	0.6	1.5 – 3	4	2.5	1.5	-	-	-	-	-
	0.55	0.75	1.3	0.76	1.5 – 3	4	2.5	1.5	-	-	-	-	-
	0.75	1	1.9	1.12	1.5 – 3	6	2.5	1.5	-	-	-	-	-
	1.1	1.5	2.6	1.53	2 – 4	6	2.5	1.5	-	-	-	-	-
	1.5	2	3.7	2.2	3 – 6	10	2.5	1.5	-	-	-	-	-
	2.2	3	4.8	2.8	4 – 8	10	2.5	1.5	2 – 3	6	2.5	1.5	2.5	1.5
	3.7	5	7.8	4.5	6 – 12	20	2.5	1.5	4 – 6	10	2.5	1.5	2.5	1.5
	5.5	7.5	11.2	6.5	6 – 12	20	2.5	1.5	5.5 – 8	16	2.5	1.5	2.5	1.5
	7.5	10	16	9.2	10 – 16	25	2.5	2.5	8 – 12	20	2.5	2.5	2.5	1.5
	9.3	12.5	19	11	14 – 20	32	4	2.5	8 – 12	25	4	2.5	2.5	1.5
	11	15	22	12.7	18 – 24	50	6	4	10 – 16	25	6	4	2.5	1.5
	15	20	29	16.8	22 – 32	50	10	6	14 – 20	32	10	6	5	2.5
	18.5	25	34	19.7	25 – 40	63	16	10	18 – 24	50	16	10	6	4
	22	30	41	23.7	30 – 45	80	16	16	17 – 25	50	16	16	6	6
	26	35	47	26.9	38 – 63	80	25	16	22 – 32	63	25	16	10	6
	30	40	54	31.2	38 – 63	100	25	16	22 – 32	63	25	16	10	8
	37	50	67	38.7	50 – 90	100	35	25	25 – 40	80	35	25	16	10
	45	60	80	46.4	50 – 90	125	50	35	38 – 63	100	50 – 90	35	25	16
	55	75	97	56	70 – 110	160	70	50	38 – 63	100	70	50	35	25
	75	100	131	75.6	90 – 135	200	95	70	50 – 90	160	95	70	50	35
	90	125	157	90.6	140 – 170	250	150	95	70 – 110	160	150	95	70	50
	110	150	191	110	-	-	-	-	70 – 110	200	185	150	95	70
	132	180	229	132.2	-	-	-	-	90 – 135	250	240	185	120	95
	143	192	248	143.2	-	-	-	-	120 – 155	250	240	185	120	95