{"product_id":"rectorseal-m12928-run-capacitor-4-mfd-440v-oval","title":"Rectorseal m12928 Run Capacitor 4 Mfd 440V Oval","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe RECTORSEAL m12928 is a 4 microfarad (MFD), 440-volt oval run capacitor designed to maintain a steady phase shift in single-phase motors found in HVAC systems. Run capacitors stay energized throughout motor operation, supplying the continuous current offset that keeps compressor, condenser fan, and blower motors running at correct torque and efficiency. At 4 MFD and 440 volts, this unit is sized for smaller fractional-horsepower motors commonly found in residential and light-commercial HVAC equipment. Licensed HVAC technicians install and replace run capacitors as part of routine seasonal maintenance or in response to motor starting and running faults.\u003c\/p\u003e\u003cp\u003eThis capacitor is suited for residential and light-commercial HVAC applications where a compact oval form factor is required. The oval housing fits standard capacitor brackets and disconnect boxes. It is a common replacement during condenser or air handler service calls when a failed or out-of-tolerance capacitor is identified as the cause of motor sluggishness, overheating, or failure to start. Its 440-volt rating allows use on both 208-240 volt single-phase circuits, providing a margin of voltage tolerance above typical system operating voltage.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4 MFD capacitance rating for fractional-horsepower motor applications\u003c\/li\u003e\n\u003cli\u003e440-volt rating compatible with 208-240 volt single-phase HVAC circuits\u003c\/li\u003e\n\u003cli\u003eOval form factor fits standard capacitor mounting brackets\u003c\/li\u003e\n\u003cli\u003eCompact dimensions suited for tight equipment compartments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement run capacitor for single-phase motors in residential and light-commercial HVAC equipment requiring a 4 MFD, 440-volt oval capacitor.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eRun capacitor replacement is performed by licensed HVAC technicians. Always disconnect and lock out power to the unit before opening the electrical compartment. Capacitors store a charge even after power is removed — discharge the capacitor safely using an approved discharge tool before handling. Verify MFD rating and voltage rating against the motor nameplate or existing capacitor before installing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacitance\u003c\/strong\u003e: 4 MFD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 440 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Oval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.21 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2.06 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 2.0 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth\u003c\/strong\u003e: 1.21 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 685744129288\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: RECTORSEAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: m12928\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RECTORSEAL","offers":[{"title":"Default Title","offer_id":51467714101554,"sku":"M12928","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313945217.png?v=1783911067","url":"https:\/\/voomisupply.com\/products\/rectorseal-m12928-run-capacitor-4-mfd-440v-oval","provider":"Voomi Supply","version":"1.0","type":"link"}