A.O. Smith 1/2 HP Round Flange 56J Full Rate EE Motor - CT1052



Part # CT1052

By A. O. Smith



Part # CT1052

Warranty 1 Year

Alternate Part #'s 08-184947-22, 10-184947-22, 13884, 14890, 165298, 177927, 181095, 182258, 184947, 52008, 5KCR39PN2921AX, 5KCR39PN2921X, 6K353, 7-184947-22, 8-182258-01, 8-184947-21, 8-184947-22, B657, C1486, CT1052, EB657, ECT1052, JD50FL1E, K48J2N100A1, K48J2N105, SP1605Z1BE

Product Description

Voltage 115/230, Max Amps 115V = 8.0 230V = 4.0, Single Speed, Round Flange, RPM = 3450, Threaded Shaft, Frame = 56J Used on the following FULL RATE ENERGY EFFICIENT models: Hayward Super II Energy Efficient, Hayward Northstar Full Rate and Jacuzzi Magnum Full Rate pumps.

Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
0.5 HP CT1052 Replacement Pool Motor
0.5 HP
3450 RPM
115/230 V
8/4 amp
Service Factor:
Total HP:
0.8 HP
Stock #:
Overload Protector:
Dimension Letter:
11 in.
Commonly Used On:
Hayward Super II , Hayward Northstar Full Rate and Jacuzzi Magnum
California Title 20 Compliant

?     Asked on 1/19/2012 by Guest

I'm trying to replace the motor on my pool pump but all these numbers and abbreviations on the motor label are really confusing me. What do they mean?

A  Answered on 1/19/2012 by InyoPools Product Specialist Patrick P.

Replacing a pool pump motor is not as difficult as it seems. You can try looking here. If you need help figuring out what the information on your label means. If you are still having difficulty figuring it out you can call us at our toll free number or you can send us a photo of your motor label here.

?     Asked on 1/12/2012 by Guest

Why should I purchase a Tune Up Kit?

A  Answered on 1/12/2012 by InyoPools Product Specialist Patrick P.

A Tune Up Kit includes all of the essential replacement seals and gaskets for the pump. The seals and gaskets should be replaced when installing a new motor on your pump. New seals will prevent the pump from leaking water or losing the prime. A Tune Up Kit will protect your motor and ensure that the pump is working efficiently.

?     Asked on 1/12/2012 by Guest

Why do I need to purchase a new shaft seal?

A  Answered on 1/12/2012 by InyoPools Product Specialist Patrick P.

We strongly recommend replacing the shaft seal. The purpose of a shaft seal is to prevent water from running down the shaft of the motor and into the motor housing. Water will damage the bearings and cause the motor to fail. A new shaft seal should be installed whenever a motor is replaced. The motor manufacturer can deny the warranty if the motor fails to due to water damage from a faulty shaft seal. To find your shaft seal you will need to visit our Pool Pump Parts Page or the Spa Pump Parts Page and select your make and model.

?     Asked on 1/11/2012 by Guest

What is Service Factor?

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.


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