Trane SFCAP40440R Capacitor

The Trane SFCAP40440R Capacitor is a high-performance 40 MFD 440V run capacitor engineered for critical motor support in residential and light commercial HVACR applications. Designed for maximum reliability, this round run capacitor features an integrated bleed resistor to safely discharge stored energy, protecting both the technician and the compressor's internal components from voltage spikes. This OEM HVAC capacitor is a direct replacement for many Trane, American Standard, and Schlage units, providing the precise phase shift required for optimal torque and energy efficiency in single-phase blower and compressor motors.

Constructed within a durable, non-PCB aluminum can, the Trane SFCAP40440R is rated for dual-voltage operation (370V/440V) and handles frequencies of 50/60 Hz. Its terminal configuration uses standard quick-connect tabs, allowing for seamless integration during field service and preventative maintenance. By maintaining a steady electrical field, this capacitor ensures smooth motor start-up and consistent running amps, which stabilizes HVAC electrical performance and prevents premature motor winding failure due to excessive heat or inconsistent power flow.

Key Benefits

• Integrated Bleed Resistor: Automatically discharges voltage to ensure safe handling and protect sensitive motor circuitry from residual current.
• Dual Voltage Compatible: Specifically rated for 440VAC but fully backward compatible with 370VAC systems, simplifying truck stock requirements.
• OEM Reliability: Genuine 40 microfarad capacitor built to exact factory tolerances (±5%) for consistent compressor motor performance.
• Environmental Safety: Features a non-PCB, oil-filled design housed in a corrosion-resistant aluminum shell.

Common Questions

• Can I use this to replace a 370V capacitor? Yes, you can always upgrade to a higher voltage rating (440V) as long as the capacitance (40 MFD) and physical dimensions match the original.
• What is the purpose of the built-in resistor? The resistor bleeds off the charge when power is removed, preventing high-voltage arcs during service and reducing stress on the start relay contacts.
• How do I know if my current capacitor is failing? Look for physical indicators such as a bulging top cap, fluid leakage, or use a multimeter to check if the microfarad reading has dropped below the ±5% tolerance.

This item is not eligible for free shipping.

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.