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General 0.25 HP 4P B56 1Ph 115/208-230 V 60 Hz IC411 - TEFC - Foot-mounted

WEG Code: 10658520 | Catalog Number: .2518ES1BB56
Product features
Standard NEMA MG-1
Frequency 60 Hz
Voltage 115/208-230 V
Number of poles 4
Degree of Protection IP55
Synchronous speed 1800 rpm
Output rating 0.25 HP
Mounting Foot-mounted
Flange Without
Mounting F-1
Terminal box¹ Left position
Enclosure IC411 - TEFC

Product details

Electric Motors

Frame B56
Output 0.25 HP (0.18 kW)
Number of Poles 4
Frequency 60 Hz
Rated speed 1750 rpm
Slip 2.78 %
Rated voltage 115/208-230 V
Rated current 4.70/2.20-2.35 A
L. R. Amperes 27.3/12.8-13.6 A
No load current 4.00/1.72-2.00 A
Rated torque 0.740 ft.lb
Locked rotor torque 360 %
Breakdown torque 280 %
Moment of inertia (J) 0.0536 sq.ft.lb
Insulation Class B
Temperature rise 80 K
Service factor 1.15 (1.00 @ 208V)
Duty Cycle Cont.(S1)
Starting Method Direct On Line
Degree of Protection IP55
Enclosure IC411 - TEFC
Mounting F-1
Rotation¹ Both (CW and CCW)
Noise Level² 50.0 dB(A)
Approx. weight³ 19.6 lb
(1) Looking the motor from the shaft end.; (2) Measured at 1m and with tolerance of +3dB(A).; (3) Approximate weight, subject to be changed after manufacturing process.; (4) At 100% of full load.


50% 75% 100%
45.0  53.0  57.7 

Power factor

50% 75% 100%
0.41  0.50  0.58 


Frame Material Rolled Steel 
Impregnation Method Dip and Bake Polyester 
Main terminal box hole 2xNPT 1/2" 
Terminal Block Without 
Drain Rubber, automatic 
Shaft Material SAE 1040/45 Carbon Steel 
Painting RAL 7022 207N (ISO 12944 - C3) 
Grounding Lugs Single 
Fan Cover material Rolled Steel 
Tropicalized Painting Without 
Fan material Plastic 
Bearing cap No-Without Bearing Cap 
Balancing Method 1/2 Key 
Drip Cover Without 
Resilient Base Without 



Bearing details

  Drive End Non Drive End
Bearing type 6203 ZZ   6202 ZZ  
Sealing V'Ring  V'Ring 
Lubrication interval
Grease amount
Grease Type Mobil Polyrex EM 

Foundation loads

Max. traction Max. compression
10 lb  30 lb 

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