Brake Motors
20NFB-3-25-36
25HP, 2P, 3Ph, 208-230/460V 60Hz, 190/380V 50Hz , 284TS, TEFC, F1, Foot Mounted, Brake Motor
Elektrim Premium TEFC IP55 3600RPM cast iron foot mounted electric motor features a high lock rotor and brake torque with a DC HPSY brake with 460V AC rectifier for applications requiring a quick stop.
Part Number
20NFB-3-25-36
Product Family
Brake Motors
Series
20N Series
Horsepower
25
Phase
3
Synchronous Speed
3600
Nominal Speed
3555
Frequency
60
Voltage
208-230/460V 60Hz, 190/380V 50Hz
Frame
284TS
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)
36.9
Lock Rotor Torque (%)
260
Break Down Torque (%)
300
Full Load Amps
65.2 A @ 208V, 59 A @ 230V, 29.5 A @ 460V, 23.6 A @ 575V
LRA (%)
695
Lock Rotor Amps
410 A @ 230V, 205 A @ 460V, 164 A @ 575V
Efficiency @ 100% Load
92.4
Power Factor @ 100% Load
86
kW @ 50 Hz
Synchronous Speed @ 50 Hz
3000
Nominal Speed @ 50 Hz
2930
Full Load Torque (lb-ft) @ 50 Hz
Lock Rotor Torque (%) @ 50 Hz
Break Down Torque (%) @ 50 Hz
Full Load Amps @ 50 Hz
72 A @ 190V, 36 A @ 380V
LRA (%) @ 50 Hz
Efficiency @ 100% Load 50 Hz
90.4
Power Factor @ 100% Load 50 Hz
87
Design Code
A
Duty Rating
Code Letter
A
Service Factor @ 60 Hz
1.2
Service Factor @ 50 Hz
1
Insulation Class
F
Inverter Rated
Bearings (DE / ODE)
6311 2Z (DE), 6311 2Z (ODE)
Impregnation Method
Vacuum Pressure Impregnation (VPI)
PTC Thermistors
Option
Space Heater
Option
Junction Box Material
Aluminum (Cast Iron Optional)
Fan Guard Material
Rolled Steel
Shaft Seal
Mounting Position
F1
Degree of Protection
IP55
Enclosure
TEFC
Finish
RAL5010
Net Weight (lbs)
348
Ship Weight (lbs)
403
Warranty Period
3-Years