Marelli - 0.25kW 3ph 6 Pole 71 Frame foor mounting 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 Mains Supply Output: 0.25kW (0.33HP) x 900RPM at 230V or 400V x 50Hz 3ph.
Inverter Drive Supply Output: 15:1 Speed Control range from 90RPM to 1350RPM, with suitable de-rating at the lower speeds.
Full Load Current - 1.5A at 230V, or 0.87A at 400V.
Power Factor is 0.7 when mains connected at 50Hz.
Efficiency is 59% 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.
Shaft is 14mm dia x 30mm with 5mm wide key.
Shaft side load is 51kg for 20,000hrs life
Rotor inertia is 0.0006kgm2
Terminal box for 1 x M20 Gland and terminals for M4 rings.
Weight is 6.5kg.
Rated at 40C Ambient.
Ventilation space required at rear cooling air intake.
Part number is - MAA71MB6
For Variable Speed use…
Part Time Output when Inverter powered is...
1.33Nm - 0.25kW (0.33HP) x 1800RPM at 100Hz
2.65Nm - 0.25kW (0.33HP) x 900RPM at 50Hz
2.65Nm - 0.12kW (0.16HP) x 450RPM at 25Hz
2.65Nm - 0.025kW (0.033HP) x 90RPM at 5Hz
Continuous Output when Inverter powered is...
1.77Nm - 0.25kW (0.33HP) x 1350RPM at 75Hz
2.65Nm - 0.25kW (0.33HP) x 900RPM at 50Hz
2.02Nm - 0.095kW (0.127HP) x 450RPM at 25Hz
0.88Nm - 0.008kW (0.011HP) x 90RPM at 5Hz
Download the full technical details via the links below...