Hartland Controls CAP-50/10/440R Run Capacitor

The Hartland Controls CAP-50/10/440R is a high-performance dual run capacitor engineered for demanding HVACR applications. Designed with a 50/10 MFD capacitance and 370/440 VAC voltage rating, this round-style component is a workhorse for technicians servicing residential and commercial condensing units. Its dual-rated design allows it to replace 370V and 440V units, reducing truck stock and ensuring you have the right part for compressor and fan motor startups. Built to EIA-456-A standards, this aluminum oil-filled capacitor provides reliable phase-shift correction required for high-efficiency motors. The non-PCB biodegradable oil and internal pressure interrupter meet strict safety protocols, preventing case rupture in the event of an end-of-life failure. When you need a component that handles broad temperature swings and high-duty cycles without derating, this CAP-50/10/440R delivers the motor run capacitance stability your clients demand for peak system performance.

Key Benefits

• Dual Voltage Versatility: Rated for both 370V and 440V applications, simplifying compatibility for service calls.
• High-Capacitance Stability: Delivers 50+10 microfarads with a tight tolerance to maintain optimal motor torque and efficiency.
• Industrial Build Quality: Features rugged 1/4" quick-connect terminals and a corrosion-resistant aluminum shell for extended service life.
• Safety Certified: Integrated UL-recognized pressure sensitive interrupter ensures safe circuit disconnection under fault conditions.

Common Questions

Can I use a 440V capacitor to replace a 370V unit?
Yes. Using a 440 VAC capacitor in place of a 370 VAC unit is a standard trade practice that offers a higher safety margin for voltage spikes, provided the MFD rating matches exactly.

What does the dual 50/10 MFD rating mean?
This capacitor services two motors simultaneously: the 50 MFD side supports the compressor (HERM), while the 10 MFD side supports the outdoor fan motor (FAN).

How do I identify a failing run capacitor?
Common indicators include a "swollen" or bulged top, low MFD readings on a multimeter, a humming motor that fails to start, or excessive compressor heat.

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.