By Magnetek
Part # BN51
Warranty 1 Year
Dimensions 14" L x 6.5" W x 6.5" D
Century 2.0 HP Thru-Bolt 48Y Dual Speed Motor - BN51
Application: Above Ground Pools & Spas Replaces: Sta-Rite, Hayward, American Products, Hydra Bath, Pac Fab, Jacuzzi, Doughboy, Etc... Features: All copper windings, Auto protector, Open drip proof, Stainless steel threaded shaft, Thrubolt pump mount, "1081" design, 60 HZ , 230V, H.P = 2 High Speed / .25 Low Speed, Full load Amps = 10.5 High speed / 2.6 Low Speed, Frame 48Y, Threaded Shaft
**NOTE THIS MOTOR IS SHIPPED LESS HI-LO SWITCH. YOU MAY PURCHASE THE HI-LO SWITCH SEPARATELY BY ORDERING PART # 18313301.**
Note: NOT California Title 20 Compliant.
What is Service Factor?
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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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Why do I need to purchase a new shaft seal?
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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.
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Why should I purchase a Tune Up Kit?
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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.
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Can you direct me to the proper hi low switch for this motor?
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Unfortunately the manufacturer does not offer the switch for the 2 speed 220v motors any longer. If you already have a 220 volt timer (on/off) you would need an Intermatic T106R to switch from high to low speed. If you do not have a timer currently you would need the T10604R which is a 220v on/off timer and a high/low timer.
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what is the correct capacitor for this motor?
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Hello Greg- The correct capacitor fo the 2 HP 2 Speed 230V Thru Bolt Motor - BN51 is the Capacitor, Start 53-64 Mfd 250v (scn-157699-03).
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