Specifications

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MOTORS
W51 Universal Motors – PROTECH
™
The PROTECH
™
Universal Series of motors is a line of HVAC replacement motors for outdoor condensing units and
indoor air handling units. Designed for a wide variety of aftermarket HVAC replacement applications, the PROTECH
Universal Series motors are manufactured under strict quality standards at one of the world’s largest and most
modern motor production facilities. Every motor undergoes a variety of stringent tests before it leaves the assembly
line. Additional internal testing and review by our engineering team are conducted to ensure the PROTECH Universal Series
of motors meet our standards. The W51 Series of motors can be easily selected for any application using the W51 “smart
part” numbering system. All you need to know is the application (such as fan or blower), the horsepower, the voltage,
and the speed settings. Detailed specifications and drawings for each motor are also available on
Rheemparts.com or Ruudparts.com.
part no hp volts rpm description list
W51-MHCJA1-01 1/6–1/3 208–230 1075 multi-horsepower univeral condenser fan motor 136.42
W51-16CJA1-01 1/6 208–230 1075 universal condenser fan motor 111.36
W51-14CJA1-01 1/4 208–230 1075 universal condenser fan motor 124.79
W51-13CJA1-01 1/3 208–230 1075 universal condenser fan motor 147.61
W51-12CJA1-01 1/2 208–230 1075 universal condenser fan motor 163.15
part no hp volts rpm description list
W51-14BAA3-01 1/4 115 1075/950/850 universal blower motor 116.06
W51-13BAA3-01 1/3 115 1075/950/850 universal blower motor 126.85
W51-12BAA3-01 1/2 115 1075/950/850 universal blower motor 165.73
W51-34BAA3-01 3/4 115 1075/950/850 universal blower motor 163.12
W51-14BJA3-01 1/4 208–230 1075/950/850 universal blower motor 125.18
W51-13BJA3-01 1/3 208–230 1075/950/850 universal blower motor 132.09
W51-12BJA3-01 1/2 208–230 1075/950/850 universal blower motor 149.12
W51-34BJA3-01 3/4 208–230 1075/950/850 universal blower motor 167.30
totAlly enClosed Condenser FAn motors
n
thru-bolt or belly band mounting
n
shell-screw mounting
n
sleeve bearing
n
5th wire reversing feature
n
48 frame, 5.5” diameter
n
60hz
n
operates in all positions
n
1/2” shaft diameter
n
6.5” shaft length
direCt drive Blower motors
n
thru-bolt or belly band mounting
n
sleeve bearing
n
5th wire reversing feature
n
48 frame
n
60hz
n
operates in all positions
n
1/2” shaft diameter
n
4.5” shaft length