Mars 12113 Dual Run Capacitor 25/10 MFD 440V Oval HVAC Motor

The Mars 12113 is a dual-section oval run capacitor rated at 25/10 MFD (microfarads) at 440 volts, designed for reliable operation in residential and commercial HVAC systems. As part of the Mars Blue Box series, this capacitor is trusted and tested by major U.S. motor and compressor manufacturers to deliver consistent, long-lasting performance.

Dual run capacitors like the Mars 12113 provide the continuous phase-shifted current needed to keep both the compressor and fan motor running efficiently in single-phase air conditioning systems. The oval form factor fits standard oval mounting straps found in most condensing units, making replacement straightforward for field technicians.

Key Features:

• Dual-Section Design: 25 MFD + 10 MFD in a single oval housing — supports both compressor and fan motor simultaneously
• 440V Rating: Compatible with both 370V and 440V systems (voltage can always be safely upgraded, never downgraded)
• Non-PCB Construction: Environmentally safe, oil-filled design
• Pressure-Sensitive Interrupter: Built-in safety device that disables the capacitor under fault conditions
• Oval Form Factor: Fits standard oval mounting straps in most residential and commercial HVAC condensing units
• Made in the USA: Produced domestically and approved by major U.S. motor and compressor companies
• Meets EIA Standards: Compliant with industry electrical specifications

The Mars 12113 is superseded by the updated Mars 12813, which shares the same 25/10 MFD 440V specifications and serves as a direct replacement. Cross-references include Genteq C32510, C32510R, C42510, and C42510R among other brands with equivalent MFD ratings.