Trane CPT0238 Run Capacitor

The Trane CPT0238 Run Capacitor is a mission-critical 50 MFD 440V component designed for sustained reliability in residential and light commercial condensing units and furnace blower motors. This OEM Trane part features a 50 microfarad capacitance and is rated for 440VAC applications, providing the necessary phase shift for permanent split capacitor (PSC) motors. Built with a round run capacitor form factor and housed in a durable aluminum casing, the CPT0238 ensures optimal compressor starting torque and high-efficiency motor operation under heavy thermal loads. Its 50/60 Hz frequency rating and non-PCB metalized polypropylene construction make it a standard professional choice for American Standard and Trane HVAC systems. For technicians, the standard quick-connect terminals and 2.62-inch diameter enable direct drop-in replacement, reducing downtime during emergency service calls. When swapping out a blown capacitor, this unit provides the precise microfarad tolerance required to prevent motor overheating and premature compressor failure in high-ambient environments.

• OEM Compatibility: Specifically engineered for Trane and American Standard equipment, ensuring a perfect physical and electrical fit.
• Broad Voltage Tolerance: Rated for 440Vac, making it safe for both 370V and 440V applications to simplify truck stock.
• Durable Construction: High-grade metalized polypropylene film encapsulated in an aluminum shell for maximum heat dissipation and dielectric strength.
• Reliable Performance: Maintains the 50 MFD capacitance necessary to keep condenser fan motors and compressors running at peak efficiency.

• Can I use this 440V capacitor to replace a 370V unit? Yes, you can always upgrade to a higher voltage rating (440V) as long as the MFD rating (50) matches exactly. This provides higher electrical headroom.
• What are the signs that this capacitor needs replacement? Look for a swollen or bulged top casing, a humming compressor that fails to start, or a multimeter reading outside the ±10% tolerance range.
• Does this work for both fan and compressor motors? The CPT0238 is a single-value run capacitor. If your system uses a dual-run capacitor (three terminals), you will need a dual-rated part or two separate single capacitors.

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.