Single Run Capacitor, Round, 30/440 uF

Mars 12741 – Jard by Mars 30 MFD, 440V Round Motor Run Capacitor The Mars 12741 is a single-value motor run capacitor rated at 30 microfarads (MFD) with a voltage rating of 440 VAC. This capacitor is engineered for continuous-duty operation in single-phase HVAC motor applications, including condenser fans and blower motors. It is constructed with a metallized polypropylene dielectric and is hermetically sealed in a round aluminum case. The capacitor includes a pressure-sensitive safety interrupter and is free of PCBs. It is designed for use in demanding HVAC environments where consistent performance, durability, and thermal stability are required. Technical Specifications Capacitance: 30 MFD (±5%) Voltage Rating: 440 VAC Operating Frequency: 50/60 Hz Temperature Range: -40°C to +70°C Dielectric Type: Metallized polypropylene film Case Style: Round aluminum can Case Height: Approx. 3-3/8 inches Diameter: Approx. ¾ inch Terminals: ¼" male quick-connect (dual terminal) Safety Interrupter: Yes Construction: Non-PCB, oil-filled Certifications: UL recognized; RoHS compliant Application Notes Designed for use in permanent split capacitor (PSC) motors Suitable for residential and light commercial HVAC systems requiring a 30 µF, 440V capacitor Can be used in fan motor or compressor motor support where matched specifications are required Common in aftermarket replacements due to standard form factor and rating profile Professional Considerations Always confirm voltage and capacitance match system requirements Installation should be completed with power disconnected and discharge protocols followed Compatible with standard HVAC mounting brackets and OEM-style quick-connect terminal configurations Ideal for inventory stocking due to universal rating and compact size