Premium Efficient
31NDM-3-50-9
50HP, 8P, 3Ph, 208-230/460V 60Hz, 190/380V 50Hz , 404TD, TEFC, F1, D-Flange, Premium Efficient Motor
Part Number
31NDM-3-50-9
Product Family
Premium Efficient
Series
31N Series
Horsepower
50
Phase
3
Synchronous Speed
900
Nominal Speed
880
Frequency
60
Voltage
208-230/460V 60Hz, 190/380V 50Hz
Frame
404TD
Frame Material
Cast Iron
Flange
D-Flange
Flange Type
'-
Feet
YES
Removable Feet
NO
Rotatable Feet
NO
Double Drilled Feet
NO
Winding Connection
Double Delta / Delta
Full Load Torque (lb-ft)
298.7
Lock Rotor Torque (%)
200
Break Down Torque (%)
230
Full Load Amps
148.2 A @ 208V, 134 A @ 230V, 67 A @ 460V, 53.6 A @ 575V
LRA (%)
Lock Rotor Amps
725 A @ 230V, 362.5 A @ 460V
Efficiency @ 100% Load
93
Power Factor @ 100% Load
76
kW @ 50 Hz
Synchronous Speed @ 50 Hz
750
Nominal Speed @ 50 Hz
715
Full Load Torque (lb-ft) @ 50 Hz
Lock Rotor Torque (%) @ 50 Hz
Break Down Torque (%) @ 50 Hz
Full Load Amps @ 50 Hz
164 A @ 190V, 82 A @ 380V
LRA (%) @ 50 Hz
Efficiency @ 100% Load 50 Hz
Power Factor @ 100% Load 50 Hz
Design Code
B
Duty Rating
Code Letter
B
Service Factor @ 60 Hz
1.15
Service Factor @ 50 Hz
1
Insulation Class
F
Inverter Rated
Bearings (DE / ODE)
6218 (DE), 6313 (ODE)
Impregnation Method
Dip and Bake
PTC Thermistors
Space Heater
Junction Box Material
Cast Iron
Fan Guard Material
Steel
Shaft Seal
Mounting Position
F1
Degree of Protection
IP55
Enclosure
TEFC
Finish
Blue
Net Weight (lbs)
1402
Ship Weight (lbs)
1502
Warranty Period
3-Years