Trane CPT0180 Capacitor

As a seasoned technician, you know that a soft-starting motor or a hum from the condenser often leads back to a drifted capacitor. The Trane CPT0180 is the specific 15 MFD 370V Oval Run Capacitor required for a range of Trane and American Standard residential and light commercial units. Designed for single-phase motor support, this HVAC replacement capacitor provides the necessary phase shift to keep fractional horsepower blower motors and specialized fan motors running at peak efficiency. This OEM Trane capacitor features a compact oval can 15 uF 370 VAC design, making it ideal for tight control cabinets where clearance is a priority. Operating between 50/60 Hz with a high 10,000 AFC rating, it offers a stable microfarad (MFD) rating and a +/- 6% tolerance, ensuring your installations meet manufacturer specifications. When the original part drifts out of tolerance, swapping in this 370 volt oval capacitor restores the proper torque profile, protecting expensive motor windings from premature overheating during continuous cycles.

• Precision Capacitance: Rated at 15 MFD with a +/- 6% tolerance for accurate motor torque and stable current flow.
• Compact Footprint: The oval aluminum housing (approx. 2-inch width) fits easily into standard Trane outdoor and indoor unit cavities.
• OEM Reliability: Direct replacement for several retired part numbers including CPT00180, CPT00463, and CPT00753, ensuring exact electrical compatibility.
• Enhanced Safety: Built without PCBs and features a 10,000 AFC internal protector to prevent case rupture under failure conditions.

Can I use a 440V capacitor if the CPT0180 370V is unavailable?
Yes, in a pinch, a 440V rated capacitor can safely replace a 370V unit as long as the 15 MFD capacitance and physical dimensions remain identical. However, never go lower than the original 370V rating.

What are the physical signs that this capacitor has failed?
Beyond a multimeter reading below 14.1 MFD, check for "doming" or a swollen top terminal plate. If the usually flat top is bubbled or oily, the internal pressure switch has likely deployed, and the part must be replaced.

Does it matter which way I connect the wires to the terminals?
Since this is a run capacitor and not a dual-run, there is no "Herm" or "Fan" side—just two sets of terminals. However, best practice is to always follow the original wiring diagram to maintain circuit integrity.

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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.