Century 3/4 HP Pool Pump Motor, 115/230V, C-Face Threaded Shaft, B127 In stock$286⁹⁹

Century B127 3/4 HP pool pump motor, front view

Century 3/4 HP Pool Pump Motor, 115/230V, C-Face Threaded Shaft, B127

Name: Century 3/4 HP Pool Pump Motor, 115/230V, C-Face Threaded Shaft, B127
Brand: Century Motors
SKU: MGT-60-5098
Price: 286.99 USD
Availability: InStock

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Quick overview

Dual voltage Wired for either 115V or 230V, so it drops into most existing installations.
C-face with threaded shaft Mounts C-face and takes a threaded impeller, matching the pumps it replaces.
Stainless shaft 303 stainless steel shaft with 7/16" threads resists the corrosion that kills plated shafts.
Switchless design A permanent split capacitor motor with no start switch to burn out.
Open dripproof, 50 C ambient Rated for continuous duty at a 50 C ambient on a rigid base.
Ball bearings both ends Ball bearings at the drive end and the opposite drive end, running counterclockwise from the pump end.

Full description and specifications ↓

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Product details

The Century B127 is a 3/4 HP replacement pool pump motor, dual voltage at 230/115 V, running 3450 rpm on a 1.5 service factor. It is an S56J frame motor with C-face mounting and a threaded shaft, which is the combination used by a large run of older pool pumps.

How it is built

It is a permanent split capacitor motor, switchless, so there is no centrifugal start switch to fail. The enclosure is open dripproof on a rigid base, rated for continuous duty at a 50 C ambient, with ball bearings at both ends and a UL 1081 design. Rotation is counterclockwise viewed from the pump end.

The shaft

The shaft is 303 stainless steel with 7/16" threads, 0.625" in diameter and a 2.57" extension, and the motor measures 12.01" overall. Stainless matters here: a plated shaft in a wet pump seal chamber will pit and then chew up every seal you fit afterwards. Century lists ST1072 as a substitute part number for this motor.

Change the pump shaft seal while the motor is out. It is a few dollars against a job you do not want to do twice.

Specifications
Brand	Century
Manufacturer part number	B127
UPC	786674011886
Substitute part number	ST1072
Horsepower	3/4 HP, 0.56 kW
Voltage	230/115 V
Speed	3450 rpm
Service factor	1.5
Frame	S56J
Phase	1
Frequency	60 Hz
Current	SF 6.0/12.0 A
Enclosure	Open dripproof
Mounting	C face, rigid base
Shaft	303 stainless steel, 7/16" threads
Shaft dimensions	0.625" diameter, 2.57" extension
Overall length	12.01"
Shipping weight	23 lb
Ships	Parcel

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Customer reviews

Questions and answers

What people ask about this product, answered by our pool techs.

Is this motor 115V or 230V?

Both. It is a dual voltage motor rated 230/115 V and is wired for whichever supply the pump is on.

What frame and shaft does it have?

S56J frame, C-face mounting, with a 303 stainless steel shaft carrying 7/16" threads, 0.625" in diameter with a 2.57" extension.

Is ST1072 the same motor?

ST1072 is listed as a substitute part number for B127.

Should I replace the shaft seal at the same time?

Yes, that is the normal practice. The seal has to come apart to change the motor, and a used seal rarely goes back in without weeping.

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