Marelli - 0.25kW 3ph 4 Pole 71 Frame B35 Foot and Flange mounting AC Motor for 230V or 400V x 50Hz 3 phase supply. Use with Variable Frequency Drives having 1ph or 3ph input and 3ph output or a fixed frequency mains supply at 50Hz.
Fixed Main Supply Output: 0.25kW (0.33HP) x 1350RPM at 230V or 400V x 50Hz 3ph.
Inverter Drive Supply Output: 15:1 Speed Control range from 135RPM to 2025RPM, with suitable de-rating at the lower speeds.
Full Load Current - 1.45A at 230V, or 0.84A at 400V.
Power Factor is 0.72 when mains connected at 50Hz.
Efficiency is 60% at full load.
Set terminal box links 'three a-breast' for 230V 'Delta' connection.
Set terminal box links ‘two at one side’ for 400V 'Star' connection.
132mm/137mm Wide x 254mm Long x 188mm high overall in its IP55 enclosure.
Foot mount on 7mm holes at 112mm wide x 90mm centres 45mm back from shaft shoulder.
Flange mount on 9mm holes at 130mm pcd with 110mm diameter register in the 160mm diameter flange.
Shaft is 14mm dia x 30mm with 5mm wide key.
Shaft side load is 46kg for 20,000hrs life (6202-2Z bearing)
Terminal box for 1 x M20 Gland and terminals for M4 rings.
Weight is 5.4kg.
Rated at 40C Ambient.
Ventilation space required at rear cooling air intake.
Part number is - MAA71MA4-B35
For Variable Speed use…
Part Time Output when Inverter powered is...
0.88Nm - 0.25kW (0.33HP) x 2700RPM at 100Hz
1.77Nm - 0.25kW (0.33HP) x 1350RPM at 50Hz
1.77Nm - 0.125kW (0.17HP) x 675RPM at 25Hz
1.77Nm - 0.025kW (0.033HP) x 135RPM at 5Hz
Continuous Output when Inverter powered is...
1.18Nm - 0.25kW (0.33HP) x 2025RPM at 75Hz
1.77Nm - 0.25kW (0.33HP) x 1350RPM at 50Hz
1.5Nm - 0.106kW (0.142HP) x 675RPM at 25Hz
0.88Nm - 0.013kW (0.017HP) x 135RPM at 5Hz
Download the Marelli MAA Technical Catalogue from the link below...