Marelli 250 Frame - 55kW 3ph 4 Pole IE2 Cast Iron AC Motor for 400V or 660V 3 phase supply. Use with 400V Variable Frequency Drives or a fixed frequency mains supply at 50Hz.
Fixed mains supply output is 55kW (75HP) x 1480RPM at 400V x 50Hz 3ph.
Can be used over a 15:1 Speed Control range from 150RPM to 2250RPM, with suitable de-rating at the lower speeds.
IE2 Efficiency at full load is 93.6%, at 3/4 load is 93.6% and at 1/2 load is 93.3%.
Full Load Current - 95.3A at 400V.
Power Factor is 0.89 when mains connected at 50Hz.
484mm Wide x 920mm Long x 622mm high overall in its IP55 enclosure.
Foot mount on 24mm holes at 406mm wide x 349mm centres 168mm back from shaft shoulder.
Shaft is 65mm diameter x 140mm long
Weight is 422kg.
Rated at 40C Ambient.
Ventilation space required at rear cooling air intake.
Full part number is - BAQ250M4-B3(BAQ 250M4-B3)
For Variable Speed use…
Part Time Output when Inverter powered is...
237Nm - 55kW (75HP) x 2220RPM at 75Hz
356Nm - 55kW (75HP) x 1480RPM at 50Hz
356Nm - 27.5kW (37.5HP) x 790RPM at 25Hz
356Nm - 5.5kW (7.5HP) x 148RPM at 5Hz
Continuous Output when Inverter powered is...
237Nm - 55kW (75HP) x 2220RPM at 75Hz
356Nm - 55kW (75HP) x 1480RPM at 50Hz
303Nm - 23.3kW (31.3HP) x 790RPM at 25Hz
356Nm - 2.75kW (3.75HP) x 148RPM at 5Hz
Download the BAQ technical brochure and dimension drawings from the link below...
From Jan 1st 2017, three phase electric induction motors with a rated output of 0.75kW to 375kW and efficiency less than IE3 must be equipped with a variable speed drive (Inverter Drive). For exceptions, see EC Commission Regulation 640/2009.