Lennox 19J31 Dual Run Capacitor – 55/5 MFD, 440 VAC, Round

FirstChoice® 19J31 Dual Run Capacitor – 55/5 MFD, 440 VAC, Round The FirstChoice® 19J31 Dual Run Capacitor is a high-quality HVAC replacement capacitor designed to operate both the compressor and condenser fan motor from a single component. Rated at 55/5 MFD and 440 VAC, this round dual run capacitor provides dependable electrical performance for compatible residential and light commercial air conditioners, heat pumps, and condensing units. The dual-section design provides 55 MFD for the compressor and 5 MFD for the condenser fan motor. By combining both capacitance requirements into one capacitor, the FirstChoice 19J31 provides a compact and convenient replacement solution for HVAC systems requiring these exact electrical specifications. Key Features and Function: • 55/5 MFD Dual Capacitance – Supports both the compressor and condenser fan motor • 55 MFD Compressor Section – Provides run capacitance for compatible HVAC compressors • 5 MFD Fan Section – Provides run capacitance for compatible condenser fan motors • 440 VAC Rating – Designed for reliable operation in demanding HVAC applications • Round Configuration – Fits compatible round capacitor mounting brackets • Dual Run Design – Combines compressor and fan motor capacitance into one component Product Details and Key Specifications: • Part Number: 19J31 • Catalog Number: 19J31 • Manufacturer: FirstChoice® • Part Type: Dual Run Capacitor • Capacitance: 55/5 MFD (µF) • Compressor Section: 55 MFD • Fan Section: 5 MFD • Voltage Rating: 440 VAC • Shape: Round • Terminal Configuration: C / HERM / FAN • C Terminal: Common • HERM Terminal: Compressor • FAN Terminal: Condenser Fan Motor • Application: Air Conditioners, Heat Pumps, and Condensing Units • Function: Provides run capacitance for the compressor and condenser fan motor • Installation Type: HVAC Replacement Capacitor 🛠️ HVAC Depot Pro Tip: Match Both MFD Ratings When replacing a dual run capacitor, always match both microfarad ratings exactly. For the FirstChoice 19J31, the required capacitance is 55/5 MFD. A weak capacitor can cause hard starting, increased amperage, overheating, intermittent operation, or premature compressor and fan motor failure. Always disconnect power and properly discharge the capacitor before servicing HVAC electrical components. Cross-Reference & Compatibility: The FirstChoice 19J31 is designed for HVAC equipment requiring: • Part Number: 19J31 • Capacitance: 55/5 MFD • Voltage Rating: 440 VAC • Shape: Round • Capacitor Type: Dual Run • Terminal Configuration: C / HERM / FAN • Application: Compressor and Condenser Fan Motor • Compatible Equipment: Residential and light commercial air conditioners, heat pumps, and condensing units requiring a 55/5 MFD 440V round dual run capacitor Always verify the capacitance, voltage rating, physical dimensions, terminal configuration, and mounting requirements before ordering.