Breakdown torque ratio [ 2.3
Winding connection ∆ or Y
Starting current ratio [ 6.7
Frequency [Hz] 50
Efficiency at 1/4 of full load [ -
Efficiency at 2/4 of full load [ 95.7
Rated output [HP] 480
Efficiency at 3/4 of full load [ 96.0
Service factor [ 1.0
Efficiency at rated (full) load [ 95.9
Duty S1
Efficiency at 5/4 of full load [ -
Power factor at 1/4 of full load [ -
Power factor at 2/4 of full load [ 0.81
Power factor at 3/4 of full load [ 0.87
Power factor at rated (full) load [ 0.88
Starting torque ratio [ 1.7
Power factor at 5/4 of full load [ -