Premium Efficient

31NFM-3-50-36

50HP, 2P, 3Ph, 208-230/460V 60Hz, 190/380V 50Hz , 326TS, TEFC, F1, Foot Mounted, Premium Efficient Motor

Elektrim Premium Efficient 31N Series TEFC 3600RPM cast iron foot mounted electric motor is CSA certified for Class I Division II Group ABCD T3C, VFD 10:1CT & 100:1VT, UL Recognized.

PRODUCT GROUP

Premium Efficient

HP / OUTPUT

50

RPM

3600

PHASE

3

VOLTAGE

208-230/460V 60Hz, 190/380V 50Hz

FRAME

326TS

FLANGE

-

DEGREE OF PROTECTION

IP55

MOUNTING POSITION

F1

ENCLOSURE

TEFC

Part Number

31NFM-3-50-36

Product Family

Premium Efficient

Series

31N Series

Horsepower

50

Phase

3

Synchronous Speed

3600

Nominal Speed

3550

Frequency

60

Voltage

208-230/460V 60Hz, 190/380V 50Hz

Frame

326TS

Frame Material

Cast Iron

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)

74.4

Lock Rotor Torque (%)

180

Break Down Torque (%)

240

Full Load Amps

126.1 A @ 208V, 114 A @ 230V, 57 A @ 460V, 45.6 A @ 575V

LRA (%)

Lock Rotor Amps

725 A @ 230V, 362.5 A @ 460V

Efficiency @ 100% Load

93.6

Power Factor @ 100% Load

88.5

kW @ 50 Hz

Synchronous Speed @ 50 Hz

3000

Nominal Speed @ 50 Hz

2950

Voltage @ 50 Hz

Values

Full Load Torque (lb-ft) @ 50 Hz

Lock Rotor Torque (%) @ 50 Hz

Break Down Torque (%) @ 50 Hz

Full Load Amps @ 50 Hz

141 A @ 190V, 70.5 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)

6312C3 (DE), 6212C3 (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)

650

Ship Weight (lbs)

690

Warranty Period

3-Years