Run Start Capacitor, Round, 10/5 MFD, 440/370

Mars 12811 – Dual Run Capacitor, 10/5 MFD, 440V, Round Can The Mars 12811 is a dual-section motor run capacitor engineered for continuous-duty operation in HVAC systems utilizing permanent split capacitor (PSC) motors. It delivers 10 microfarads (compressor circuit) and 5 microfarads (fan circuit) with a voltage rating of 440 VAC. Its compact round aluminum can design, combined with a built-in pressure-sensitive interrupter, meets UL 810 safety standards for HVAC applications. Technical Specifications: Capacitance: 10 µF (HERM), 5 µF (FAN) Voltage Rating: 440V AC Configuration: Dual motor run Shape: Round Terminals: Standard 3-tab terminal layout (C, HERM, FAN) Dielectric: Metallized polypropylene film Operating Temperature: -40°C to +70°C Protection: Internal pressure interrupter Case Material: Aluminum Frequency: 50/60 Hz Certifications: UL Recognized (UL 810), RoHS compliant Application Notes: The Mars 12811 capacitor is intended for use in HVAC condenser units and other PSC motor-driven systems requiring dual capacitance values. It supports efficient operation of both the compressor and the fan motor, improving system stability and reducing electrical noise. Installation Considerations: Installation should be performed with power disconnected and the capacitor properly discharged. Ensure all replacement specifications match the original equipment, including MFD, voltage, and form factor. Always follow manufacturer service guidelines and local code requirements. For safety and compliance, installation is best handled by a qualified technician.