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The Mars 14281 is a dual run capacitor rated 30/5 MFD at 440/370 volts, built for continuous duty in residential and light commercial condensing units. It feeds both the compressor and the condenser fan motor from one can, which saves cabinet space and simplifies wiring versus two separate capacitors. The dual voltage rating lets one part cover a range of equipment configurations, so techs can stock fewer SKUs. It is a service part for split-system AC and heat pump units, not a DIY upgrade.
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The Mars 14281 is a dual run capacitor rated at 30/5 MFD and 440/370 volts. It is made for continuous-duty use in residential and light commercial HVAC systems. It is made by Motors and Armatures, a CSW Industrials company.
One capacitor can supports both the compressor and the condenser fan motor. This takes up less cabinet space and simplifies wiring compared with two separate capacitors. It fits split-system air conditioners and heat pumps whose condensing units use a shared capacitor for both motors.
It is an OEM-style replacement for units that call for a 30/5 MFD, 440/370 volt dual run capacitor. It is sold as a single unit. A licensed HVAC technician must install it. Disconnect and lock out power to the condensing unit first, and fully discharge the capacitor before removal. Confirm that the MFD and voltage ratings match or exceed the equipment nameplate, and follow local codes and the manufacturer's wiring diagram.
