Marelli 0.37kW 3ph 4 Pole Foot Mounting 71 Frame AC Motor for 230V or 400V x 50Hz 3 phase supply. Use with Variable Frequency Inverter Drives having 1ph or 3ph input and 3ph output or a fixed frequency mains supply at 50Hz.
Fixed Main Supply Output: 0.37kW (0.5HP) x 1370RPM at 230V or 400V x 50Hz 3ph.
Inverter Drive Supply Output: 15:1 Speed Control range from 137RPM to 2055RPM, with suitable de-rating at the lower speeds.
Full Load Current: 1.93A at 230V, or 1.11A at 400V.
Efficiency: 65% at full load.
Power Factor: 0.74 when mains connected at 50Hz.
Set terminal box links 'three a-breast' for 230V 'Delta' connection.
Set terminal box links ‘two at one side’ for 400V 'Star' connection.
Dimensions: 132mm/137mm Wide x 254mm Long x 188mm high overall.
Enclosure Rating: IP55.
Foot mount on 7mm holes at 112mm wide x 90mm centres 45mm back from shaft shoulder.
Shaft: 14mm dia x 30mm with 5mm wide key.
Terminal box: for 1 x M20 Gland and terminals for M4 rings.
Weight: 6.2kg.
Ambient: Rated at 40C.
Ventilation space required at rear cooling air intake.
Part number: MAA71MB4 B3 (MAA71-MB4 B3).
For Variable Speed Use…
Part Time Output when Inverter powered is...
1.29Nm - 0.37kW (0.5HP) x 2740RPM at 100Hz
2.58Nm - 0.37kW (0.5HP) x 1370RPM at 50Hz
2.58Nm - 0.18kW (0.25HP) x 685RPM at 25Hz
2.58Nm - 0.037kW (0.05HP) x 137RPM at 5Hz
Continuous Output when Inverter powered is...
1.72Nm - 0.37kW (0.5HP) x 2055RPM at 75Hz
2.58Nm - 0.37kW (0.5HP) x 1370RPM at 50Hz
2.19Nm - 0.157kW (0.211HP) x 685RPM at 25Hz
1.29Nm - 0.019kW (0.025HP) x 137RPM at 5Hz
Download the Dimensions and Technical Catalogue from the links below...