Brake Motors

20NFB-3-25-18/575

25HP, 4P, 3Ph, 575V 60Hz, 284T, TEFC, F1, Foot Mounted, Brake Motor

Elektrim Premium 575V TEFC IP55 1800RPM cast iron foot mounted electric motor features a high lock rotor and brake torque with a DC HPSY brake with 460V OR 230VAC rectifier for applications requiring a quick stop.

PRODUCT GROUP

Brake Motors

HP / OUTPUT

25

RPM

1800

PHASE

3

VOLTAGE

575V 60Hz

FRAME

284T

FLANGE

-

DEGREE OF PROTECTION

IP55

MOUNTING POSITION

F1

ENCLOSURE

TEFC

Part Number

20NFB-3-25-18/575

Product Family

Brake Motors

Series

20N Series

Horsepower

25

Phase

3

Synchronous Speed

1800

Nominal Speed

1780

Frequency

60

Voltage

575V 60Hz

Frame

284T

Frame Material

Cast Iron

Flange

-

Flange Type

-

Feet

YES

Removable Feet

NO

Rotatable Feet

NO

Double Drilled Feet

YES

Winding Connection

S

Full Load Torque (lb-ft)

73.7

Lock Rotor Torque (%)

380

Break Down Torque (%)

420

Full Load Amps

24.4 A @ 575V

LRA (%)

984

Lock Rotor Amps

240 A @ 575V

Efficiency @ 100% Load

93.6

Power Factor @ 100% Load

82

kW @ 50 Hz

Synchronous Speed @ 50 Hz

Nominal Speed @ 50 Hz

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

LRA (%) @ 50 Hz

Efficiency @ 100% Load 50 Hz

Power Factor @ 100% Load 50 Hz

Design Code

A

Duty Rating

Code Letter

A

Service Factor @ 60 Hz

1.15

Service Factor @ 50 Hz

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)

397

Ship Weight (lbs)

452

Warranty Period

3-Years