Run Capacitor, Round, 80 MFD, 440/370

Mars 12759 – Jard by Mars 80 MFD, 440V Round Motor Run Capacitor The Mars 12759 is a single-value motor run capacitor with a capacitance rating of 80 microfarads (MFD) and a voltage rating of 440 VAC. Designed for continuous-duty operation, it supports permanent split capacitor (PSC) motors used in HVAC systems, including compressors and fan motors in air conditioning equipment. This capacitor is constructed with a metallized polypropylene dielectric enclosed in a round aluminum case. It features a built-in pressure-sensitive interrupter for internal fault protection and is manufactured without PCBs. The unit meets UL and RoHS compliance requirements and is designed for long service life in high-temperature environments. Technical Specifications Capacitance: 80 MFD (±5%) Voltage Rating: 440 VAC Operating Frequency: 50/60 Hz Dielectric: Metallized polypropylene film Enclosure: Round aluminum can Safety Feature: Internal pressure interrupter Operating Temperature Range: -40°C to +70°C Terminal Type: ¼" male quick-connect Construction: Oil-filled, hermetically sealed, non-PCB Certifications: UL recognized, RoHS compliant Applications Supports PSC motor circuits in HVAC systems requiring 80 MFD at 440V Used in air conditioning units, heat pumps, and ventilation fans Suitable for OEM replacement or aftermarket service Compatible with standard capacitor brackets and mounting hardware Installation Guidance Ensure system power is off and existing capacitor is discharged prior to handling Match capacitance and voltage ratings precisely to the original specification Use secure quick-connect terminals and proper mounting procedures Installation by a qualified HVAC technician is recommended for safety and compliance