Minimum NEMA Motor Starter Size Verses Horsepower/Voltage

MinimumNEMAMotorStarter Size	Maximum Horsepower – Polyphase Motors
	Full Voltage Starting			Auto Transformer Starting			Part Winding Starting			Wye Delta Starting
	200V	230V	460V 575V	200V	230V	460V 575V	200V	230V	460V 575V	200V	230V	460V 575V
00	1 ½	1 ½	2	—	—	—	—	—	—	—	—	—
0	3	3	5	—	—	—	—	—	—	—	—	—
1	7 ½	7 ½	10	7 ½	7 ½	10	10	10	15	10	10	15
2	10	15	25	10	15	25	20	25	40	20	25	40
3	25	30	50	25	30	50	40	50	75	40	50	75
4	40	50	100	40	50	100	75	75	150	60	75	150
5	75	100	200	75	100	200	150	150	350	150	150	300
6	150	200	400	150	200	400	—	300	600	300	350	700
7	—	300	600	—	300	600	—	450	900	500	500	1000
8	—	450	900	—	450	900	—	700	1400	750	800	1500
9	—	800	1600	—	800	1600	—	1300	2600	1500	1500	3000

Maximum Horsepower – Polyphase Motors