Motor Run Capacitor, Round, Enclosed in a metal can, 50 MFD, 440/370 Volt

Mars 12751 – Jard by Mars 50 MFD, 440V Round Motor Run Capacitor The Mars 12751 is a single-value motor run capacitor with a capacitance of 50 microfarads (MFD) and a voltage rating of 440 VAC. Designed for permanent split capacitor (PSC) motor applications, it delivers continuous-duty support for HVAC components such as condenser fans, compressors, and blower motors. The unit is constructed with a metallized polypropylene film dielectric and is sealed in a round aluminum case with a pressure-sensitive interrupter for added safety. It is non-PCB and designed to meet UL and RoHS compliance requirements for residential and light commercial HVAC systems. Technical Specifications Capacitance: 50 MFD (±5%) Voltage Rating: 440 VAC Operating Frequency: 50/60 Hz Case Style: Round aluminum shell Dielectric Material: Metallized polypropylene film Safety Feature: Internal pressure-sensitive interrupter Operating Temperature Range: -40°C to +70°C Construction: Oil-filled, non-PCB Terminals: ¼" quick-connect male blades Certifications: UL recognized, RoHS compliant Application and Use Designed for continuous-duty use in PSC motor circuits Commonly specified for air conditioners, rooftop units, and other HVAC systems requiring a 50 MFD capacitor at 440V Fits standard bracket and clamp configurations in most commercial and residential units Ideal for OEM replacement and stocked service parts Installation Considerations Match capacitance and voltage ratings to system specifications prior to installation Discharge capacitor properly before handling Use approved electrical connections and terminal protection Installation should be performed by qualified HVAC personnel to ensure safety and system compatibility