If the switch opens below 650 PSI

The integrated 60-90 degree Fahrenheit scale is clearly visible through the window

refractory

This PSC (Permanent Split Capacitor) motor utilizes a 5 MFD 370 VAC capacitor for starting torque and operates with a CCWLE rotation (Counter Clockwise Lead End)

though the physical size may differ

Nidec-US Motors 9721 Motor 323055-751 If the switch opens belowField proven and built for the rigors of commercial refrigeration, the Nidec US Motors 9721 Motor is a specialized 3 in 1 multi horsepower powerhouse designed to streamline local truck stock. Engineered as a direct replacement for PD1127, this 3. 3 inch diameter motor provides a reliable retrofit for hundreds of OEM shaded pole evaporator fan applications found in Heatcraft, Bohn, and Chandler equipment. Featuring a Permanent Split Capacitor (PSC)