Regal Rexnord Century Motors 15769731 Motor Start Capacitor 161-193 MFD 165V Round

The Regal Rexnord Century Motors 15769731 is a round motor start capacitor rated at 161–193 MFD at 165 VAC, designed to provide reliable starting torque for single-phase capacitor-start electric motors. Also referenced as part number 157697-31, this OEM replacement capacitor is a direct fit for a wide range of motor applications including HVAC equipment, compressors, and other motor-driven systems.

Motor start capacitors temporarily store and release electrical energy during the startup phase, enabling the motor to overcome initial load resistance and reach operating speed quickly and efficiently. Once the motor reaches sufficient speed, an internal centrifugal switch disconnects the capacitor from the start winding.

Key Specifications:

• Capacitance Range: 161–193 MFD (microfarads)
• Voltage Rating: 165 VAC
• Shape: Round
• Diameter: 1-7/16 inches (approx. 1.44 in.)
• Height: 3-1/4 inches
• Cross Reference: 157697-31

Century, a Regal Rexnord brand, has been a trusted manufacturer of electric motors and motor components for HVAC, industrial, and commercial applications for decades. The 15769731 start capacitor is an OEM-grade replacement that ensures dependable performance and proper phase shift for consistent motor acceleration.