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The Mars 12942 is a dual run capacitor that packs an 85 MFD compressor section and a 7.5 MFD fan section into one round aluminum can. It is rated 440V AC and 50/60 Hz, so it works in most residential and light commercial PSC motor circuits, including condensers, heat pumps and ventilation units. The metallized polypropylene film is built to handle heat, high electrical load and vibration. It is a service part for HVAC techs replacing a failed dual capacitor, not a general-purpose component.
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The Mars 12942 is a dual run capacitor rated 85/7.5 MFD at 440V AC. It is made for continuous-duty use in permanent split capacitor (PSC) motor circuits in HVAC systems. One round unit supports a compressor circuit and a fan motor circuit at the same time.
It has a round aluminum canister with metallized polypropylene film construction. It is built for long-duty cycle and continuous-run applications.
It is an OEM-style replacement for residential and light commercial HVAC systems that use PSC motors needing an 85/7.5 MFD, 440V AC dual capacitor. Examples include air conditioning condensers, heat pumps, and ventilation units. Installation should be done by a licensed HVAC technician. Before installing, check that the MFD ratings, voltage rating, and physical dimensions match the original capacitor.
