MARS 12743 Run Capacitor
The MARS 12743 Run Capacitor is a high-performance 35 MFD 440V component designed for continuous duty in residential and commercial HVACR systems. Built to withstand the rigorous back EMF generated by condenser fan motors and compressor motors, this round run capacitor features a heavy-duty aluminum casing and is internally protected with a physical interrupter for maximum safety. As a standard HVAC motor run capacitor, it is rated for 50/60 Hz and offers a reliable 35 microfarad capacitance with a +/- 5% tolerance, ensuring your equipment operates within its designed power factor. This 12743 model is a direct 35 uF replacement capacitor for various manufacturers, including Packard TRC35 and JARD 12743. The 440 VAC rating provides superior dielectric strength compared to 370V alternatives, allowing it to handle voltage spikes more effectively in demanding environments. Designed with standard 1/4-inch quad-blade terminals, this 35 MFD capacitor simplifies field replacements for technicians servicing air conditioning compressors and furnace blowers.
Key Benefits for the Contractor- Dual Voltage Compatibility: Rated at 440VAC, it safely replaces both 370V and 440V units, reducing the number of individual SKUs needed on the truck.
- Enhanced Safety: Features a pressure-sensitive physical interrupter that disconnects the capacitor in case of internal failure, preventing case rupture.
- High Tolerance Standards: Maintains a tight +/- 5% capacitance tolerance, crucial for protecting high-efficiency PSC motors from overheating.
- Durable Construction: Non-PCB oil-filled design housed in a corrosion-resistant aluminum shell for reliable performance in extreme temperatures.
- Universal Fit: Standard round capacitor geometry ensures compatibility with existing mounting brackets and straps in most condensing units.
Can I use a 440V capacitor if the original was 370V?
Yes. Using a 440VAC capacitor to replace a 370VAC unit is a best practice. The higher voltage rating indicates a thicker dielectric, which provides better resistance against voltage surges without changing the capacitance.
How do I know if this 35 MFD capacitor needs replacement?
Look for physical signs such as a bulged top or oil leakage. Electrically, technicians should verify the capacitance with a multimeter; if the reading falls more than 5% below the 35 microfarad rating, the motor may draw excessive current and require a replacement.
Is this a dual or single run capacitor?
The MARS 12743 is a single run capacitor (35 MFD). While it is used in systems alongside fan motors, it is not a "dual" unit. If your system requires both 35 MFD for the compressor and 5 MFD for the fan in one can, you would need a dual-section capacitor like the MARS 12783.
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.
Original: $9.85
-65%$9.85
$3.45MARS 12743 Run Capacitor
The MARS 12743 Run Capacitor is a high-performance 35 MFD 440V component designed for continuous duty in residential and commercial HVACR systems. Built to withstand the rigorous back EMF generated by condenser fan motors and compressor motors, this round run capacitor features a heavy-duty aluminum casing and is internally protected with a physical interrupter for maximum safety. As a standard HVAC motor run capacitor, it is rated for 50/60 Hz and offers a reliable 35 microfarad capacitance with a +/- 5% tolerance, ensuring your equipment operates within its designed power factor. This 12743 model is a direct 35 uF replacement capacitor for various manufacturers, including Packard TRC35 and JARD 12743. The 440 VAC rating provides superior dielectric strength compared to 370V alternatives, allowing it to handle voltage spikes more effectively in demanding environments. Designed with standard 1/4-inch quad-blade terminals, this 35 MFD capacitor simplifies field replacements for technicians servicing air conditioning compressors and furnace blowers.
Key Benefits for the Contractor- Dual Voltage Compatibility: Rated at 440VAC, it safely replaces both 370V and 440V units, reducing the number of individual SKUs needed on the truck.
- Enhanced Safety: Features a pressure-sensitive physical interrupter that disconnects the capacitor in case of internal failure, preventing case rupture.
- High Tolerance Standards: Maintains a tight +/- 5% capacitance tolerance, crucial for protecting high-efficiency PSC motors from overheating.
- Durable Construction: Non-PCB oil-filled design housed in a corrosion-resistant aluminum shell for reliable performance in extreme temperatures.
- Universal Fit: Standard round capacitor geometry ensures compatibility with existing mounting brackets and straps in most condensing units.
Can I use a 440V capacitor if the original was 370V?
Yes. Using a 440VAC capacitor to replace a 370VAC unit is a best practice. The higher voltage rating indicates a thicker dielectric, which provides better resistance against voltage surges without changing the capacitance.
How do I know if this 35 MFD capacitor needs replacement?
Look for physical signs such as a bulged top or oil leakage. Electrically, technicians should verify the capacitance with a multimeter; if the reading falls more than 5% below the 35 microfarad rating, the motor may draw excessive current and require a replacement.
Is this a dual or single run capacitor?
The MARS 12743 is a single run capacitor (35 MFD). While it is used in systems alongside fan motors, it is not a "dual" unit. If your system requires both 35 MFD for the compressor and 5 MFD for the fan in one can, you would need a dual-section capacitor like the MARS 12783.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The MARS 12743 Run Capacitor is a high-performance 35 MFD 440V component designed for continuous duty in residential and commercial HVACR systems. Built to withstand the rigorous back EMF generated by condenser fan motors and compressor motors, this round run capacitor features a heavy-duty aluminum casing and is internally protected with a physical interrupter for maximum safety. As a standard HVAC motor run capacitor, it is rated for 50/60 Hz and offers a reliable 35 microfarad capacitance with a +/- 5% tolerance, ensuring your equipment operates within its designed power factor. This 12743 model is a direct 35 uF replacement capacitor for various manufacturers, including Packard TRC35 and JARD 12743. The 440 VAC rating provides superior dielectric strength compared to 370V alternatives, allowing it to handle voltage spikes more effectively in demanding environments. Designed with standard 1/4-inch quad-blade terminals, this 35 MFD capacitor simplifies field replacements for technicians servicing air conditioning compressors and furnace blowers.
Key Benefits for the Contractor- Dual Voltage Compatibility: Rated at 440VAC, it safely replaces both 370V and 440V units, reducing the number of individual SKUs needed on the truck.
- Enhanced Safety: Features a pressure-sensitive physical interrupter that disconnects the capacitor in case of internal failure, preventing case rupture.
- High Tolerance Standards: Maintains a tight +/- 5% capacitance tolerance, crucial for protecting high-efficiency PSC motors from overheating.
- Durable Construction: Non-PCB oil-filled design housed in a corrosion-resistant aluminum shell for reliable performance in extreme temperatures.
- Universal Fit: Standard round capacitor geometry ensures compatibility with existing mounting brackets and straps in most condensing units.
Can I use a 440V capacitor if the original was 370V?
Yes. Using a 440VAC capacitor to replace a 370VAC unit is a best practice. The higher voltage rating indicates a thicker dielectric, which provides better resistance against voltage surges without changing the capacitance.
How do I know if this 35 MFD capacitor needs replacement?
Look for physical signs such as a bulged top or oil leakage. Electrically, technicians should verify the capacitance with a multimeter; if the reading falls more than 5% below the 35 microfarad rating, the motor may draw excessive current and require a replacement.
Is this a dual or single run capacitor?
The MARS 12743 is a single run capacitor (35 MFD). While it is used in systems alongside fan motors, it is not a "dual" unit. If your system requires both 35 MFD for the compressor and 5 MFD for the fan in one can, you would need a dual-section capacitor like the MARS 12783.
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.
