Premium Efficient
20NCM-3-250-18
250HP, 4P, 3Ph, 230/460V 60Hz, 380V 50Hz , 447TC, TEFC, F1, C-Face, Performance Series - Premium Efficient Motor
Elektrim Premium 20N Series TEFC IP55 1800RPM cast iron C-Face electric motor features a 1.2 service factor, 10:1CT & 20:1VT VFD rating, oversized ball bearings, VPI, thermistor and space heater. 230/460V DD/D wiring with nameplate M06400595.
Part Number
20NCM-3-250-18
Product Family
Premium Efficient
Series
20N Series
Horsepower
250
Phase
3
Synchronous Speed
1800
Nominal Speed
1788
Frequency
60
Voltage
230/460V 60Hz, 380V 50Hz
Frame
447TC
Frame Material
Cast Iron
Flange
C-Face
Flange Type
-
Feet
YES
Removable Feet
YES
Rotatable Feet
NO
Double Drilled Feet
NO
Winding Connection
Double Delta / Delta (2019 and newer models only)
Full Load Torque (lb-ft)
735
Lock Rotor Torque (%)
160
Break Down Torque (%)
200
Full Load Amps
534 A @ 230V, 267 A @ 460V, 214 A @ 575V
LRA (%)
684
Lock Rotor Amps
3650 A @ 230V, 1825 A @ 460V, 1460 A @ 575V
Efficiency @ 100% Load
96.2
Power Factor @ 100% Load
91
kW @ 50 Hz
Synchronous Speed @ 50 Hz
1500
Nominal Speed @ 50 Hz
1485
Full Load Torque (lb-ft) @ 50 Hz
Lock Rotor Torque (%) @ 50 Hz
Break Down Torque (%) @ 50 Hz
Full Load Amps @ 50 Hz
328 A @ 380V
LRA (%) @ 50 Hz
Efficiency @ 100% Load 50 Hz
95.8
Power Factor @ 100% Load 50 Hz
91
Design Code
B
Duty Rating
Code Letter
B
Service Factor @ 60 Hz
1.2
Service Factor @ 50 Hz
1
Insulation Class
F
Inverter Rated
Bearings (DE / ODE)
6318 C3 (DE), 6318 C3 (ODE)
Impregnation Method
Vacuum Pressure Impregnation (VPI)
PTC Thermistors
Standard
Space Heater
Standard
Junction Box Material
Cast Iron
Fan Guard Material
Rolled Steel
Shaft Seal
Mounting Position
F1
Degree of Protection
IP55
Enclosure
TEFC
Finish
RAL5010
Net Weight (lbs)
2447
Ship Weight (lbs)
2687
Warranty Period
3-Years