High efficiency motor Features: HP: 1HP-20HP, 2, 4, and6P Voltage: 208-230/460V, 575V, 60Hz Frame: 143TC-256TC; Rolled steel; NEMA design B; Accept C-flange and Kit-flange; 1.15 service factor; Insulation Class B. F. H, UL approved; Enclosure: ODP; IP Class: IP23; CSA&CUS certified; EPACT(CC) certified