Premium Efficient
31NDM-3-20-12
20HP, 6P, 3Ph, 208-230/460V 60Hz, 190/380V 50Hz , 286TD, TEFC, F1, D-Flange, Premium Efficient Motor
Elektrim Premium Efficient 31N Series TEFC 1200RPM cast iron foot mounted electric motor is CSA certified for Class I Division II Group ABCD T3C, VFD 10:1CT & 100:1VT, UL Recognized.
Part Number
31NDM-3-20-12
Product Family
Premium Efficient
Series
31N Series
Horsepower
20
Phase
3
Synchronous Speed
1200
Nominal Speed
1170
Frequency
60
Voltage
208-230/460V 60Hz, 190/380V 50Hz
Frame
286TD
Frame Material
Cast Iron
Flange
D-Flange
Flange Type
-
Feet
YES
Removable Feet
NO
Rotatable Feet
NO
Double Drilled Feet
YES
Winding Connection
Double Delta / Delta
Full Load Torque (lb-ft)
89.8
Lock Rotor Torque (%)
210
Break Down Torque (%)
225
Full Load Amps
56.4 A @ 208V, 51 A @ 230V, 25.5 A @ 460V, 20.4 A @ 575V
LRA (%)
Lock Rotor Amps
290 A @ 230V, 145 A @ 460V
Efficiency @ 100% Load
92.4
Power Factor @ 100% Load
81
kW @ 50 Hz
Synchronous Speed @ 50 Hz
1000
Nominal Speed @ 50 Hz
975
Full Load Torque (lb-ft) @ 50 Hz
Lock Rotor Torque (%) @ 50 Hz
Break Down Torque (%) @ 50 Hz
Full Load Amps @ 50 Hz
62.3 A @ 190V, 31.2 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)
6310ZZ (DE), 6210ZZ (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)
475
Ship Weight (lbs)
505
Warranty Period
3-Years