MARS 12734 Run Capacitor

The MARS 12734 Run Capacitor is a legacy-grade 15 MFD 440V round capacitor engineered for continuous duty in demanding HVACR environments. This single capacitance motor run component serves as the direct replacement for CPT0274, ensuring a precise match for Trane, American Standard, and other OEM equipment requiring a 15 microfarad 440VAC rating. Designed with an aluminum case and a 60,000-hour operational life, it maintains a stable phase shift for optimal motor torque and efficiency. With a broad operating temperature range of -40°C to +70°C and a standard 1.75-inch diameter, this dual voltage 370/440V unit fits standard mounting brackets, making it a reliable choice for condenser fan motors and small compressor applications.

Technical Performance Benefits

• Universal Compatibility: The 440/370V rating allows this HVAC run capacitor to be utilized in both low and high-voltage applications without performance loss.
• Enhanced Durability: Constructed with non-PCB oil and a pressure-sensitive interrupter to protect against internal pressure buildup and potential case rupture.
• Efficient Heat Dissipation: The round aluminum composition housing ensures superior thermal conductivity, critical for maintaining capacitance stability in high-ambient condenser sections.
• Simplified Installation: Features standard 1/4-inch 4-terminal quick-connect studs for fast wiring in tight electrical cabinets.

Common Questions

Can the MARS 12734 replace a 370V capacitor?
Yes. This 440/370V capacitor is rated for higher dielectric strength, making it a safe and superior 15 MFD replacement for any 370V or 440V application.

Is this capacitor compatible with both 50Hz and 60Hz systems?
The MARS 12734 is designed to operate on 50/60 Hz frequencies, ensuring worldwide compatibility for various motor-run requirements.

What are the physical dimensions for mounting?
This unit has a case height of 2.375 inches and a diameter of 1.75 inches. Ensure your existing mounting strap accommodates a "Round" frame before installation.

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.