A.O. Smith 3/4 HP Round Flange 56J Full Rate EE Motor - B638

$244.99

IN STOCK
FREE SHIPPING

Part # 5221AX

By Century Motors


Details

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Part # 5221AX

Warranty 1 Year

Manufacturer Code B638

Alternate Part #'s 1-184948-22, 10-165118-04, 10-182259-04, 10-184948-22, 10-186085-20, 1203005400, 1203165400, 13-184948-22, 14449, 151962, 164719, 165118, 16511800, 177948, 18-184948-22, 181096, 181372, 181372PJ, 182259, 184948PJ, 186084, 186085, 52009, 8-165118-03, 8-165118-04, 8-181096-20, 8-184948-12, 8-184948-21, 816511806, 90101031, 90118571, C1437, CT1072, CT207CE, EB638, JD75FL1E, K48K2N100A1, K63CXDGG-5168, K63CXEPW-4765

Product Description

A.O. Smith 3/4 HP Round Flange 56J Full Rate EE Motor - B638

Note: NOT California Title 20 Compliant. 

California Title 20 Compliant Options:

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
0.75 Hp B638 Replacement Pool Motor
HP:
0.75 HP
Speed:
Single
RPM:
3450 RPM
Volts:
208 - 230/115 V
Amps:
5.4 - 5/10 amp
Service Factor:
1.5
Total HP:
1.13 HP
Frame:
56J
Stock #:
B638
Shaft:
Threaded
Overload Protector:
Auto
Dimension Letter:
C
Dimensions:
12.69 in.
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?     Asked on 6/22/2017 by

What impeller size (3/4hp or 1hp) goes with B638 3/4 hp motor? Thanks,
 Reply

A  Answered on 6/22/2017 by InyoPools Product Specialist Hector F.

The impeller part number will depend on the model of the front pump housing that the motor bolts to. You can call and provide that or if you are not sure than you can send us an image or two of the housing to upload@inyopools.com.
 Reply


?     Asked on 1/11/2012 by Guest

What is Service Factor?
 Reply

A  Answered on 1/11/2012 by InyoPools Product Specialist Patrick P.

Service Factor(SF) is a multiplier that when multiplied by the horsepower of the motor indicates the total permissible horsepower loading that may be carried when the motor is operating at rated voltage and frequency. The most important thing to remember when replacing a motor is that the replacement motor's horsepower times its service factor must be equal to or greater than the original motor's horsepower times its service factor. The Service Factor rating can be found on the motor label. See Step 4 of our How to Read a Pool Motor Label guide.
 Reply


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