Trane SFCAP45440R Run Capacitor

For service technicians and contractors maintaining residential and light commercial HVAC systems, the Trane SFCAP45440R Run Capacitor is a standard-issue HVAC OEM replacement part engineered for motor reliability. This 45 MFD 440V round run capacitor is constructed with metallized polypropylene and serves as a direct replacement for failing capacitors in condenser fans and blower motors. Rated for 440VAC (and backwards compatible with 370VAC applications), it operates within a stringent tolerance of +/- 5% to ensure the phase shift remains within the motor's design parameters. Designed for high thermal resilience, this 45 microfarad capacitor maintains stability in temperatures ranging from -40°C to 70°C, preventing the premature motor wear typically associated with generic alternatives. The non-PCB, oil-filled housing features standard 1/4-inch quick-connect terminals for rapid installation during service calls, ensuring consistent torque and operational efficiency for high-performance compressors and motors.

• Precise 45 MFD Capacitance: Ensures accurate phase displacement for optimized motor efficiency and reduced winding heat.
• Dual Voltage Compatibility: Rated for 440V applications while safely covering 370V requirements, reducing the need for multiple truck stock items.
• OEM Engineering: Specifically designed for Trane equipment to maintain original manufacturer specifications and performance curves.
• Robust Environmental Tolerance: Operates reliably through extreme ambient temperature fluctuations up to 70°C.
• Standard Round Form Factor: Facilitates easy drop-in replacement in existing mounting brackets and straps.

• Can this 440V capacitor replace a 370V unit? Yes, the 440V rating is the dielectric strength of the capacitor; it can safely replace a 370V unit without impacting system performance.
• What does the +/- 5% tolerance mean for my motor? This tolerance ensures the Trane SFCAP45440R provides a capacitance value close to the nominal 45 MFD, which is critical for protecting the motor windings from over-current.
• How do I identify if this capacitor has failed? Look for common signs such as a bulged top, fluid leakage, or using a multi-meter to confirm the microfarad reading is outside the specified tolerance range.

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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.