MARS 12932 Run Capacitor

The MARS 12932 Run Capacitor is a fundamental component for field technicians servicing HVAC/R systems, motors, and compressors. This 10 MFD 440V oval capacitor provides the necessary phase shift for efficient motor startup and operation. As the direct replacement for 12032, it fits standard brackets found in most residential and commercial condensing units. Rated for 370/440 VAC at 50/60 Hz, this component is engineered to operate within a broad temperature range of -40°C to +70°C, ensuring stability in high-ambient rooftop environments. The aluminum-cased construction offers superior heat dissipation compared to plastic alternatives, while the four secure terminals facilitate standard wiring configurations. Built for an operational life of 60,000 hours, it serves as a reliable solution for maintaining electric motor performance and system efficiency across diverse cooling applications.

Key Benefits for Technicians:

• 10 Microfarad (µF) ± 5%: Precise capacitance for optimal torque and motor efficiency.
• Dual Voltage Compatible: Seamlessly replaces both 370V and 440V oval run capacitors.
• Drop-in Replacement: Directly replaces obsolete part number 12032 with identical physical dimensions.
• Industrial Durability: Non-PCB, oil-filled design with an internal pressure sensitive interrupter for safety.
• Thermal Stability: Sustains performance across a -40°F to 158°F range, critical for outdoor condenser duty.

Common Technical Questions:

Can I use a 440V capacitor if my unit currently uses a 370V?
Yes, you can always go up in voltage rating (370V to 440V), but you must never go down. The MARS 12932 440V rating provides a higher dielectric strength for safer operation.

What are the physical dimensions for mounting?
This capacitor features an oval profile with dimensions of approximately 2.875 inches in height, 2.056 inches in width, and 1.212 inches in depth, making it compatible with most standard oval mounting straps.

Does the MARS 12932 include an internal interrupter?
Yes, this unit is equipped with an internal pressure sensitive interrupter designed to disconnect the capacitor from the circuit at the end of its life, preventing casing rupture.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.