Supco CR10X440 Run Capacitor

The Supco CR10X440 is a heavy-duty, 10 MFD 440V oval run capacitor engineered for continuous duty in single-phase HVACR motor applications. This professional-grade component provides the critical phase shift required for high-torque condenser fan motors, blower assemblies, and refrigeration compressors. Built with a rugged drawn steel case and utilizing non-PCB, biodegradable synthetic oil, it maintains dielectric stability across an operational temperature range of -40°F to 185°F. The quad-blade quick-connect terminals facilitate efficient field wiring, while the ±5% capacitance tolerance ensures motor performance stays within OEM specifications. As a direct CR10X440 cross reference for CAP100000440LAS, this unit is an ideal 10 uF 440V capacitor replacement for technicians servicing residential and light commercial equipment. Its 440VAC rating offers increased dielectric strength, making it a reliable upgrade for systems originally utilizing 370V components.

• Universal Application: Designed as a 10 MFD HVAC run capacitor suitable for furnaces, AC units, and heat pumps.
• Enhanced Durability: The 440V rating provides a superior safety margin against voltage surges compared to standard 370V alternatives.
• Compact Oval Profile: Fits standard mounting brackets in tight electrical control boxes and furnace vestibules.
• Safety Rated: Features internal pressure-sensitive interrupter protected by a durable steel housing for reliable circuit interruption.

Can I use this 440V capacitor to replace a 10 MFD 370V capacitor?
Yes. In HVACR service, you can always increase the voltage rating of a run capacitor, provided the microfarad (MFD/µF) rating remains identical. Using a 440V rated part in a 370V application often extends the component life due to the higher dielectric threshold.

How do I test if the CR10X440 is failing?
Use a multimeter with a capacitance setting to verify the 10 µF output. If the reading falls outside the ±5% tolerance, or if the steel casing shows signs of bulging or leaking oil, the capacitor must be replaced to prevent motor overheating and winding failure.

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.