What is a Variable Frequency Drive?
A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.

Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
 
 
BF4N.50-2-Dealers Electric-Brook Crompton
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BF4N.50-2-Dealers Electric-Brook Crompton BF4N.50-2-Dealers Industrial-Brook Crompton BF4N.50-2-Dealers Industrial-Brook Crompton BF4N.50-2-Dealers Industrial-Brook Crompton  
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.5 HP, 1800 RPM, 208/230/460 Volts, TEFC, 56, Footed

Model #: BF4N.50-2  
BF4N.50-2
 
Stock:  0
HP : .50
RPM : 1800
Enclosure : TEFC
Frame : 56
Frame Remarks : Footed
Volts : 208/230/460
Phase : 3
Manufacturer : Brook Crompton
Classification : Three Phase
Item Condition : Factory New
Weight:  30 lbs
Retail Price$235.00
Our Price:
$226.32
You Save:$8.68
 
Out of Stock

W Series, nema 56, 3 Phase - TEFC Foot Mounted - Cast Aluminum

  • Horsepower: 0.50
  • RPM: 1800
  • Frame: 56
  • Voltage: 208-230/460 V
  • Full Load Efficiency: 68
  • Service factor @ 60 Hz: 1.25
  • Full Load Amps: 0.98
  • "C" Dimension (In.): 11.54
  • Removable/ repositionable feet for easy conversion to F1, F2, F3 (F0), or round body configuration
  • NEMA MG1-Part 31 inverter duty
  • 15:1 constant torque, 20:1 variable torque
  • 1.25 service factor at 60Hz, 1.0 service factor at 50Hz
  • Class F insulation with class B temperature rise
  • IP55 degree of protection for washdown duty enclosure
  • Full contact shaft seals inside both brackets for increased protection against contaminants
  • Dual rated 60/50Hz at same HP
  • Cast aluminum conduit box with drilled and tapped entry is rotatable in 90 degree increments
  • CSA approved for Class I; Division 2; Groups A, B, C & D, Zone 2; Groups IIA & IIB T3 on sine wave power
  • Internal tropicproof
  • 1 year warranty
  • Factory New
  • Footed
  • Aluminum
GENERAL INFORMATION
HP KW Pole RPM Frame Voltage Hz Phase IP Rating
0.5 0.37 4 1800 56 208-230/460 V 60 3 IP55
 
Enclosure Ins. Class Service Factor Time Rating NEMA Design Rated Amb. Rate Altitude
TEFC F 1.25 Continuous B -15 to 40 C° <3300 ft
 
TYPICAL PERFORMANCE
Efficiency (%) Power Factor (%)
Full Load 3/4 Load 1/2 Load Full Load 3/4 Load 1/2 Load
68 68 64 0.7 0.61 0.48
 
LRT % BDT % Full Load Amps Locked Rotor Amps NEMA KVA Code
460 V 460 V
225 340 0.98 4.7 K
 
Weight* Bearing Size Oil Seal Sound Level
Lbs. Drive End Non-Drive End Drive End Non-Drive End dB(A)
- - - - - -
* Weights shown are estimated and based on standard foot mounted motor designs
 
VFD DUTY INFORMATION
Variable Torque Constant Torque Rating
- 3 - 60 Hz - CSA Approved Class I; Div 2; Groups A, B, C, & D, T3
- - -
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