MARS 12767 Run Capacitor

The MARS 12767 is a trade-grade 40/4 microfarad 370Vac round dual run capacitor designed for high-duty cycle performance in residential and commercial condensing units. As an industry-standard HVAC replacement capacitor, this component is essential for supporting both the hermetic compressor and the outdoor fan motor. Built to meet stringent UL and CSA safety standards, the 12767 features a non-PCB oil-filled construction and a patented pressure-sensitive interrupter (PSI) that safely disconnects the capacitor in the event of an internal fault or end-of-life pressure buildup.

For technicians performing preventative maintenance or emergency repairs, the MARS 12767 dual run capacitor offers clean 60Hz operation and a +/- 6% capacitance tolerance, ensuring stable motor torque and amperage draw. This round-can model replaces common 40+4 MFD 370V counterparts, including those from Jard, Supco, and GE. Its rugged 1/4-inch male quick-connect terminals and wide operating temperature range (-40°C to +70°C) make it a reliable choice for AC capacitor replacement in demanding environments. When a dual-voltage 440V unit isn't required, this 370V-rated round run capacitor provides a cost-effective, technician-approved solution for optimizing HVAC motor efficiency.

• Dual-Run Versatility: Supports both compressor (40 MFD) and fan (4 MFD) functions in a single round-case chassis.
• Safety Engineered: Integrated PSI (Pressure Sensitive Interrupter) prevents case rupture under catastrophic failure conditions.
• Broad Compatibility: Directly replaces Jard 12767 and various OEM 40/4 370V capacitors used in popular split-system brands.
• Industrial Build: Non-PCB oil and moisture-resistant construction ensures performance in high-ambient rooftop and outdoor applications.

Can I use an 12767 to replace a 440V capacitor?
No. While you can replace a 370V capacitor with a 440V rated unit, you must never replace a 440V capacitor with a 370V unit like the MARS 12767, as it will lead to premature failure.

Is this capacitor compatible with both 50Hz and 60Hz systems?
Yes, the MARS 12767 is designed to operate efficiently on both 50Hz and 60Hz power supplies, common in various HVACR motor applications.

Does the MARS 12767 come pre-charged?
No. Capacitors should always be handled with care and discharged properly before installation to ensure technician safety.

This item is not eligible for free shipping.

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.