Trane SFCAP45D5440R Run Capacitor

The Trane SFCAP45D5440R Run Capacitor is a high-performance 45+5 MFD 370/440V round dual run capacitor specifically designed for intensive HVAC applications. As a direct CPT0656 replacement, this heavy-duty component stabilizes the electrical loads for both the compressor and the condenser fan motor within Trane and American Standard condensing units. Built with a robust aluminum housing, it is engineered for high-vibration environments and features a 10,000 AFC pressure-sensitive interrupter for circuit safety. Whether you are addressing a hard start condition, a humming motor, or conducting routine seasonal maintenance, this ServiceFirst OEM capacitor ensures your equipment maintains peak SEER efficiency. Its dual-voltage rating allows it to safely replace older 370V models, providing superior heat dissipation and dielectric strength in ambient temperatures ranging from -40°C to 70°C.

• Dual-Motor Support: Efficiently manages the 45 MFD compressor (HERM) and 5 MFD fan motor circuits from a single space-saving canister.
• OEM Compatibility: Guaranteed fit for systems requiring Trane SFCAP45D5440R or American Standard CPT00656 specifications.
• Enhanced Durability: Rated for up to 60,000 hours of operational life with a Non-PCB, oil-filled design for maximum thermal stability.
• Voltage Versatility: The 440VAC rating provides an upgraded safety margin for systems originally utilizing 370V capacitors.

Can I use a 45/5 440V capacitor to replace a 370V model?
Yes. While you must never use a capacitor with a lower voltage rating than the original, using a 440V capacitor in place of a 370V unit is a standard industry upgrade that offers better resistance to voltage spikes.

What are the signs that my SFCAP45D5440R needs replacement?
Technicians should look for physical bulging on the top of the canister, oil leaks, or a "clicking" sound from the compressor. If your multimeter reveals capacitance outside the ±5% tolerance, the part should be replaced to prevent motor overheating.

Which terminals represent the compressor and the fan?
The "HERM" terminal connects to the compressor start winding, "FAN" connects to the condenser fan motor, and "C" is the common terminal. Always discharge the capacitor before handling to avoid electrical shock.

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.