Run Start Capacitor, Round, 15/5 MFD, 440/370

Mars 12818 Dual Motor Run Capacitor – 15/5 MFD, 440V, Round The Mars 12818 is a dual-section run capacitor engineered for use in HVAC applications requiring combined motor support. Rated at 15/5 microfarads with a 440V AC capacity, this round capacitor is designed to support two motor circuits simultaneously—commonly fan and compressor units—in a compact enclosure, reducing the need for multiple components. Constructed with metallized polypropylene film and protected by an internal pressure interrupter, the unit is designed for dependable operation in continuous-duty environments. The aluminum canister construction and standard 60 Hz frequency rating make it suitable for both residential and light commercial systems. Product Specifications: Capacitance: 15/5 MFD (μF) Voltage Rating: 440V AC Configuration: Dual Run Shape: Round Frequency: 50/60 Hz Construction: Metallized polypropylene film with aluminum case Terminals: Standard ¼" quick-connect Operating Temperature Range: -40°C to +70°C Application Notes: Designed for use in split-phase and capacitor-start/capacitor-run motors. Compatible with a range of OEM and aftermarket HVAC systems requiring dual-value capacitors. Suitable for direct replacement where 15/5 MFD, 440V round capacitors are specified. Always de-energize circuits and discharge existing capacitors prior to installation. Confirm correct value and voltage match with equipment specifications before replacement. The Mars 12818 provides reliable startup and run support across fan and compressor motor combinations. This unit is suitable for field replacements in condensers, air handlers, and similar installations where space efficiency and electrical reliability are priorities.