Hartland Controls CAP-15/440 Run Capacitor

The Hartland Controls CAP-15/440 is a heavy-duty 15 MFD 440V oval run capacitor designed for consistent motor performance in demanding HVACR applications. Engineered as a direct replacement for CPT0839, this component provides the precise phase shift required for single-phase AC motors, ensuring efficient startup and continuous operation of condenser fans and blower assemblies. With a dual-rated voltage of 370/440 VAC, it offers technicians a versatile solution that handles higher voltage peaks while maintaining stable capacitance in high-ambient environments. Metallized polypropylene film construction and a vibration-resistant oil-filled housing provide the thermal stability needed to prevent premature dielectric breakdown. For contractors performing preventative maintenance or emergency repairs, this HVAC motor run capacitor meets strict OEM standards for reliability. Its compact oval footprint allows for seamless integration into tight control boxes, providing a professional-grade solution for restoring torque and reducing amperage draw in residential and commercial cooling systems.

Key Benefits

• Universal Voltage Compatibility: Rated for both 370V and 440V applications, reducing the variety of stock needed on the truck.
• Drop-in Replacement: Specifically cross-referenced as the CPT0839 replacement for simplified installation in existing equipment.
• High-Grade Dielectric: Built with premium film to ensure consistent 15 microfarad output and prevent motor overheating.
• Physical Durability: Leak-proof oval aluminum casing designed to withstand the rigors of high-duty cycle operation.

Common Questions

Can I use a 440V capacitor to replace a 370V unit?
Yes. Using a 440 volt capacitor in place of a 370 volt unit is a recommended practice as it provides a higher insulation safety margin, though you must always match the 15 MFD capacitance exactly.

What are the signs that my run capacitor is failing?
Common indicators include a humming motor that fails to start, "bulging" of the capacitor top, or an out-of-tolerance MFD reading during a multi-meter bench test.

Is the CAP-15/440 suitable for outdoor condenser fans?
This 15 microfarad run capacitor is specifically designed for the high-temperature environments found in outdoor condensing units and indoor air handlers alike.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

CAP-15/440 is the cross of H1-1849