Breakdown torque ratio [ 2.2
Winding connection ∆ or Y
Starting current ratio [ 7.0
Frequency [Hz] 50
Efficiency at 1/4 of full load [ -
Efficiency at 2/4 of full load [ 95.6
Rated output [HP] 420
Efficiency at 3/4 of full load [ 95.9
Service factor [ 1.0
Efficiency at rated (full) load [ 95.7
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 [ 0.77
Power factor at 3/4 of full load [ 0.84
Power factor at rated (full) load [ 0.86
Starting torque ratio [ 1.9
Power factor at 5/4 of full load [ -