Trane CPT0235 Run Capacitor

The Trane CPT0235 Run Capacitor is a high-performance 35 MFD 440V round run capacitor engineered for demanding HVACR applications. As a critical component for Trane motor and compressor operation, this unit provides the essential phase shift required to maintain optimal torque and efficiency. Designed to meet or exceed EIA-456-A industry standards, the CPT0235 features a durable aluminum casing and a high-grade polypropylene film dielectric to ensure stable capacitance and thermal dissipation under continuous duty. With a 35 microfarad rating and a 440Vac capacity, it is fully backward compatible with 370V systems, offering a robust overhead for voltage spikes. This OEM-spec replacement capacitor is a standard inventory item for contractors servicing residential condensing units and heat pumps where physical round form factor constraints and precise electrical tolerances are mandatory for system longevity and amp draw stabilization.

• Enhanced Dielectric Strength: Equipped with premium internal film to resist breakdown during high-ambient operation.
• Universal Voltage Capability: Rated at 440Vac, allowing for safe installation in both 370V and 440V applications.
• OEM Precision: Specifically designed for Trane and American Standard equipment to ensure proper motor starting and running torque.
• Operational Reliability: Built for continuous duty cycles, reducing the risk of premature swelling or leakage common in generic alternatives.

Can I use a 440V CPT0235 to replace a 370V capacitor?
Yes, a higher voltage rating is a safe upgrade. As long as the 35 MFD capacitance matches the motor's requirements and the round shape fits the bracket, the 440V rating provides increased durability.

Will this capacitor fix a humming outdoor fan motor?
A failed run capacitor is a frequent cause of humming or "hard starts." If the motor is not seized, replacing a weak or bulged CPT0235 often restores proper rotation and reduces amp draw.

Does this unit require a specific orientation during installation?
Because the Trane CPT0235 utilizes standard 1/4" quick-connect terminals and is non-polarized, it can be mounted in any orientation within the control box as long as it is secured by the mounting strap.

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.