Tecumseh K150-19 Run Capacitor

The Tecumseh K150-19 is a high-performance single run capacitor engineered for demanding HVACR applications, specifically within Tecumseh compressor systems. This 45 MFD 440V capacitor is a critical electrical component designed to provide continuous phase-shift power to motor windings, ensuring optimal torque and operational efficiency. Built to meet the rigorous Tecumseh H-115 testing standards, this 440 volt run capacitor features a robust oil-filled construction and a hermetically sealed aluminum case to withstand high-ambient temperatures in commercial refrigeration units. With a capacitance rating of 45 microfarads and a 440VAC tolerance, it serves as a reliable replacement for 370V and 440V rated systems where a 45 uF capacitor is specified. Proper installation of this OEM-grade capacitor helps prevent motor overheating and premature compressor failure, maintaining the designed SEER rating of the equipment. For technicians on-site, the standard 1/4 inch quick-connect terminals allow for a secure and efficient wiring interface during routine maintenance or HVAC repair calls.

• Precise 45 MFD Rating: Delivers consistent capacitance required for high-torque Tecumseh hermetic compressors.
• Universal 440V Compatibility: Safely replaces lower 370V rated units, offering increased dielectric strength and thermal headroom.
• OEM-Spec Durability: Tested under 150% rated voltage conditions to ensure field reliability in mission-critical refrigeration.
• Compact Form Factor: Features a standard 3.15 x 5.5 x 2.75 inch footprint for easy fitment in narrow electrical cabinets.

Can I use a 440V capacitor to replace a 370V capacitor?
Yes. You can always increase the voltage rating of a capacitor (e.g., using a 440V unit in place of a 370V unit), but you must never use a lower voltage rating than originally specified, as it will lead to immediate component failure.

What are the signs that a 45 MFD run capacitor is failing?
Common indicators include a bulging or "domed" top, oil leaks around the terminals, or a compressor that hums but fails to start. Always verify the actual output with a multimeter set to the capacitance (MFD) range; if the reading is more than 6% outside of the 45 uF rating, it requires replacement.

Does it matter which wire goes to which terminal on a single run capacitor?
While the terminals on a single run capacitor are typically not polarized, it is standard practice to follow the existing wiring diagram for the specific compressor. The 4-spade terminals are electrically common, allowing for multiple lead attachments if required by the system design.

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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.