Dual Run Capacitor, Round, 30/5/440 uF

Mars 12781 – Jard by Mars Dual Run Capacitor, 25/5 MFD, 440V The Mars 12781 is a dual-section motor run capacitor with capacitance ratings of 25 and 5 microfarads (MFD), designed for continuous-duty operation in HVAC systems. Rated for 440 volts AC, this capacitor is intended for use in permanent split capacitor (PSC) motors, supporting two loads—typically a compressor and fan motor—in a single compact unit. The unit features an oil-filled, metallized polypropylene dielectric sealed in a round aluminum case. It includes a built-in pressure-sensitive interrupter for fault protection and is constructed without PCBs. This model is compliant with UL and RoHS standards and is suitable for both OEM and replacement installations in residential and light commercial systems. Technical Specifications Capacitance: 25/5 MFD (±5%) Rated Voltage: 440 VAC Frequency: 50/60 Hz Enclosure: Round aluminum case Dielectric: Metallized polypropylene film Safety Device: Internal pressure interrupter Construction: Oil-filled, hermetically sealed, non-PCB Operating Temperature: -40°C to +70°C Terminals: Dual ¼" male quick-connects Certifications: UL recognized, RoHS compliant Application Notes Used in dual motor PSC applications such as residential HVAC condensing units Supports simultaneous operation of fan and compressor motors Compatible with standard mounting brackets and common terminal configurations Ensure replacement matches both capacitance values and voltage rating Installation Guidance Disconnect and discharge the old capacitor prior to installation Verify system voltage and microfarad ratings to ensure compatibility Proper terminal orientation and secure mounting are required for performance and safety Qualified personnel should handle all installation procedures in accordance with local codes