Minimum NEMA Motor Starter Size Verses Horsepower/Voltage

Minimum
NEMA
Motor
Starter
Size

Maximum Horsepower – Polyphase Motors

Full Voltage StartingAuto Transformer StartingPart Winding StartingWye Delta Starting
200V230V460V 575V200V230V460V 575V200V230V460V 575V200V230V460V 575V
001 ½1 ½2
0335
17 ½7 ½107 ½7 ½10101015101015
2101525101525202540202540
3253050253050405075405075
44050100405010075751506075150
57510020075100200150150350150150300
6150200400150200400300600300350700
73006003006004509005005001000
845090045090070014007508001500
98001600800160013002600150015003000