Marelli 90 Frame - 1.5kW 3ph 4 Pole, foot mounting AC Motor with; 2048ppr x 15V Encoder, Force Cooling Fan and Over-Temperature detectors for 230V and 400V 3 phase supply. Use with Variable Frequency Drives having 1ph or 3ph input and 3ph output.
Nominal Speed is 1395RPM and can be used over a 1000:1 Speed Control range to 2800RPM (0.1Hz to 100Hz) continuously as there is a separately powered cooling fan.
Full Load Current - 6.2A at 230V, or 3.6A at 400V.
Overload - 150% x 60seconds.
Power Factor is 0.76 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.
Encoder is 12V to 30V at 2048ppr in quadrature with complements.
Over temperature detectors are Thermistors.
174mm Wide x xxxmm Long x 239mm high overall in its IP55 enclosure.
Foot mount on 9mm holes at 140mm wide x 125mm centres 56mm back from shaft shoulder.
Shaft is 24mm dia x 50mm with 8mm wide key.
Shaft side load is 80kg for 20,000hrs life (6205-2Z bearing)
Weight is 20kg.
Rated at 40C Ambient.
Ventilation space required at rear cooling air intake.
Full part number is - MAA90L4/B3/Enc/Fc/Th
For Variable Speed use…
Continuous Output when Inverter powered is...
5.1Nm - 1.5kW (2.0HP) x 2800RPM at 100Hz
10.3Nm - 1.5kW (2.0HP) x 1395RPM at 50Hz
10.3Nm - 0.75kW (1.0HP) x 700RPM at 25Hz
10.3Nm - 0.15kW (0.2HP) x 140RPM at 5Hz
10.3Nm x 2.8RPM at 0.1Hz (uses 690P in closed loop Vector control)