Trane CPT0670 Run Capacitor

The Trane CPT0670 is a high-performance 55/5 MFD 440V round run capacitor designed for demanding HVACR applications. For technicians servicing Trane and American Standard units, this dual capacitance component provides critical support for both the compressor and the outdoor fan motor. With a voltage rating of 440 VAC, it is fully backward compatible with 370V systems, offering increased dielectric strength and thermal headroom. The round run capacitor construction features a non-PCB, oil-filled design that ensures optimal heat dissipation during long duty cycles. This HVAC dual capacitor is engineered to maintain motor torque and efficiency, preventing premature failures caused by capacitance drift or voltage spikes. When replacing a failed capacitor, the Trane 55/5 440V specification ensures precise electrical matching for residential and light commercial condensing units. Reliable starting and running of induction motors depend on stable phase-shift characteristics, which this OEM-grade part delivers consistently across its broad operating temperature range.

Key Benefits

• Dual capacitance (55+5 µF) allows a single component to manage both the compressor and the condenser fan motor.
• 440V rating provides superior protection against voltage fluctuations compared to standard 370V alternatives.
• Constructed with a robust round metal can to withstand high ambient temperatures in outdoor environments.
• Standard quick-connect terminals facilitate rapid installation and secure electrical connections for field service.
• High-volume compatibility with Trane and American Standard equipment ensures exact physical and electrical fit.

Common Questions

Can I use a 440V capacitor if the old one was 370V?
Yes, a 440V capacitor is a superior upgrade for a 370V system as it can handle higher voltage loads without failing, though the MFD rating must match exactly.

What are the symptoms of a failing CPT0670 capacitor?
Common signs include a compressor that hums but fails to start, the fan motor spinning slowly or not at all, and visible bulging or leaking on the capacitor casing.

Does this capacitor require a specific orientation?
No, the round can design can be mounted in any orientation, provided it is secured properly with a mounting strap to manage vibration.

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.