Hartland Controls CAP-40/440R Run Capacitor

The Hartland Controls CAP-40/440R Run Capacitor is a heavy-duty 40 MFD 370/440V round run capacitor engineered for continuous duty in high-demand HVACR systems. Built as a high-performance HVAC motor run capacitor, this unit features a robust aluminum oil-filled construction that ensures superior heat dissipation and stability across a wide temperature range of -40°F to 158°F. Designed to meet EIA standard RS-456, it serves as a critical component for maintaining peak motor efficiency and optimal power factor correction in compressors and blower motors.

This universal round run capacitor is the professional-grade choice for field technicians requiring a reliable direct replacement. It is fully compatible with common industry part numbers including CPT0272, SFCAP40440R, 2010133, and 19J01. With 0.250" quick-connect terminals and a 22,000-hour rated life, this 40 microfarad capacitor provides the consistent phase-shift torque necessary to protect sensitive motor windings from premature wear and operational failure in residential and commercial equipment.

Key Benefits for Technicians

• Dual Voltage Rated: Operates at both 370 VAC and 440 VAC, reducing the need to carry multiple SKUs on the service truck.
• Precision Tolerance: Maintains a tight +/- 3% capacitance tolerance for consistent motor performance and reduced electrical noise.
• EIA RS-456 Compliant: Validated through strict in-house testing to ensure 94% survival over its operational life.
• Broad Compatibility: Ideal for HVAC compressors, condenser fan motors, pool and spa pumps, and food service equipment.
• Rugged Build: Unpainted aluminum housing and oil-filled dielectric provide long-term reliability in harsh mechanical environments.

Common Questions

Can I use a 440V capacitor to replace a 370V unit?
Yes. A higher voltage rating on a run capacitor is acceptable and often preferred as it provides a greater safety margin against voltage surges. However, the 40 MFD capacitance must match the original motor specifications exactly.

What is the difference between a round and oval capacitor?
The difference is purely physical. If your mounting bracket is designed for a round case, the CAP-40/440R is the correct fitment. Always verify the mounting strap clearance before installation.

How do I know if my capacitor is failing?
Common indicators include a bulging top cap, leaked dielectric oil, or a motor that hums but fails to start. Testing with a multimeter should show a reading within 3% of the 40 microfarad rating.

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.