Mars 12813 – Dual Motor Run Capacitor, 25/10 MFD, 440V, Round Can
The Mars 12813 is a dual-rated run capacitor designed for use in HVAC equipment that utilizes permanent split capacitor (PSC) motors. With a capacitance of 25 microfarads (compressor circuit) and 10 microfarads (fan circuit), and a voltage rating of 440V AC, this component supports continuous-duty motor operation in demanding residential and commercial HVAC systems.
Technical Specifications:
Capacitance: 25 µF (HERM) / 10 µF (FAN)
Voltage Rating: 440 VAC
Frequency: 50/60 Hz
Shape: Round aluminum case
Terminals: Standard three-terminal configuration (C, FAN, HERM)
Dielectric: Metallized polypropylene film
Temperature Range: -40°C to +70°C
Case Protection: Pressure-sensitive internal interrupter
Compliance: UL 810 Recognized, RoHS Compliant
Application Overview:
This capacitor is engineered to provide simultaneous support to both the compressor and the fan motor in single-phase air conditioning and heat pump systems. It is suitable for replacement applications requiring a dual-section capacitor with matching specifications, allowing efficient and compact component configuration.
Installation Guidance:
Ensure the capacitor rating matches the original equipment manufacturer’s specifications. Installation must be carried out with the power disconnected and the capacitor discharged. All wiring should comply with current NEC and local code requirements. For best results and to ensure system safety, installation should be performed by a licensed HVAC technician or electrician.