Run Start Capacitor, Round, 20/10 MFD, 440/370

Mars 12651 – Dual Motor Run Capacitor, 20/10 MFD, 440V, Round The Mars 12651 is a dual-value run capacitor designed for continuous-duty applications in HVAC systems utilizing permanent split capacitor (PSC) motors. It provides 20 microfarads (µF) for hermetic compressor operation and 10 µF for fan motor support, with a voltage rating of 440 VAC. Technical Specifications: Capacitance: 20 µF (HERM) / 10 µF (FAN) Voltage Rating: 440 VAC Frequency: 50/60 Hz Case Style: Round aluminum housing Terminal Configuration: Dual section, 3-terminal (C, HERM, FAN) Operating Temperature: -40°C to +70°C Dielectric: Metallized polypropylene film Internal Protection: Built-in pressure-sensitive interrupter Environmental Compliance: Non-PCB construction Performance Standard: EIA-456A compliant Typical Applications: Supports the start and run functionality of compressor and fan motors in single-phase HVAC systems Designed for air conditioners, heat pumps, and refrigeration equipment requiring dual capacitance support Suitable for residential and light commercial installations operating within 440V systems Installation Considerations: Capacitor should only be replaced with a unit matching the original capacitance and voltage ratings. De-energize equipment and discharge all capacitors before removal. Installation should be performed by licensed HVAC technicians to ensure safe and code-compliant setup.