Run Start Capacitor, Round, 85/7.5 MFD, 440/370

Mars 12942 Dual Motor Run Capacitor – 85/7.5 MFD, 440V, Round The Mars 12942 is a dual-value motor run capacitor designed for use in HVAC applications requiring support for both compressor and fan motors. With a capacitance rating of 85/7.5 microfarads and a voltage rating of 440V AC, this round capacitor is suitable for continuous-duty operation in systems using permanent split capacitor (PSC) motors. This unit is manufactured with metallized polypropylene film and enclosed in a corrosion-resistant aluminum canister. It includes an internal pressure-sensitive interrupter for safety and ¼-inch male quick-connect terminals for standard compatibility across a wide range of systems. Technical Specifications: Model: Mars 12942 Capacitance: 85/7.5 MFD (μF) Voltage Rating: 440V AC Shape: Round Terminals: ¼" male quick-connect Frequency: 50/60 Hz Dielectric: Metallized polypropylene film Housing: Aluminum Safety Feature: Built-in pressure interrupter Operating Temperature Range: -40°C to +70°C Certification: UL Recognized Application Overview: Designed for permanent split capacitor (PSC) motor systems. Provides dual-capacitance support in HVAC equipment for both compressor and fan motor operation. Suitable for field replacement where 85/7.5 MFD, 440V AC round capacitors are specified. Common in residential and light commercial air conditioning units, heat pumps, and refrigeration systems. Installation Considerations: Ensure all circuits are de-energized and the existing capacitor is properly discharged before servicing. Match capacitance and voltage values to equipment specifications. Mount securely with correct orientation; terminal connections are labeled for proper configuration (C, FAN, HERM). Installation must comply with all applicable electrical codes and manufacturer requirements. Professional installation is recommended to ensure performance and safety compliance. The Mars 12942 is engineered for consistent performance in demanding HVAC environments. It is a reliable choice for dual-motor applications where a compact and high-capacitance solution is required.