Crompton 0.5 Hp 2800 Rpm 3 Phase Motor Winding Data Crompton 0.5 Hp 2800 Rpm 3 Phase Motor Winding Data Hp – 0.5 R.p.m – 2800 Slots – 24 Pitch – 10 – 12 Turns – 110 S.w.g – 26 No. One Set Weight – 130 gm Connection – y Star Core Length – 55 mm Diameter – 57 mm