Mars 12228 Dual Run Capacitor 35/10 MFD 370VAC Round Blue Box

The Mars 12228 is a dual section round motor run capacitor rated at 35/10 MFD (Microfarad) at 370VAC, part of the trusted Mars Blue Box series. Designed for use in HVAC systems, this capacitor supports both the compressor and fan motor circuits in a single compact round housing — eliminating the need for two separate capacitors.

Key Features:

• Dual Section Design: Houses two capacitors in one body — 35 MFD for the compressor and 10 MFD for the fan motor
• 370VAC Voltage Rating: Rated for standard single-phase HVAC applications
• Round Form Factor: Compact round aluminum housing for easy installation in most HVAC equipment
• Wide Temperature Range: Operates reliably from -40°C to +70°C
• 60,000-Hour Operational Life: Built for long-term, continuous-duty performance
• 50/60 Hz Compatible: Suitable for both 50 Hz and 60 Hz electrical systems
• Non-PCB Construction: Environmentally safe capacitor composition
• Multiple Terminal Configuration: Features terminals compatible with standard HVAC wiring

The Mars Blue Box series is engineered to meet or exceed OEM specifications and is widely used as a reliable replacement capacitor in residential and commercial air conditioning condensers and heat pumps. MFD (Microfarad) measures the capacitor's electrical storage capacity — a critical factor in ensuring proper motor starting and running performance.