MARS 12005 Run Capacitor
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MARS 12005 Run Capacitor

MARS 12005 Run Capacitor

For service calls requiring a reliable motor start boost, the MARS 12005 Run Capacitor is a baseline HVAC part for condenser fan motors and small refrigeration compressors. This 5 MFD 370V run capacitor is an OEM-grade, non-PCB component engineered for AC motor run applications that demand consistent voltage and current adjustments. Its oval 370VAC capacitor housing is constructed from heavy-duty aluminum with a steel cap, featuring a physical interrupter for internal pressure safety. Rated for 50/60 Hz and built to EIA-456-A standards, it offers a high operational life of up to 60,000 hours. The compact 1.5-inch case height and 1/4-inch terminals ensure a quick capacitor replacement in tight electrical cabinets. Whether you are servicing a residential split system or a light commercial unit, this 5 microfarad capacitor provides the necessary frequency stability and phase shift for peak motor efficiency across a wide temperature range of -40°C to 70°C.

Key Benefits for Technicians
  • OEM-Grade Reliability: Designed to meet or exceed original equipment manufacturer specifications for 120 Series and similar AC motors.
  • Enhanced Safety: Internal physical interrupter prevents casing rupture under fault conditions; contains no hazardous PCBs.
  • Broad Compatibility: Standard 5 uF run capacitor rating fits a wide variety of fan motors, blowers, and small pump systems.
  • Durable Construction: Moisture-resistant aluminum housing and standard quad-blade terminals facilitate secure, long-lasting connections.
Common Questions

Can I use a 440V capacitor if the original was 370V?
Yes. In HVAC applications, you can always go up in voltage rating (to a 440V unit), as this indicates the maximum breakdown voltage the dielectric can handle. However, you must never go below the original voltage rating.

What is the difference between uF and MFD?
In the context of HVAC capacitors, they are identical. Both represent microfarads. This 5 MFD unit is electrically equivalent to any 5 uF capacitor.

Does the oval shape matter for performance?
The shape (oval vs. round) does not affect the electrical performance of the circuit. As long as the capacitance (5 MFD) and voltage (370V or higher) match, the only concern is ensuring the mounting bracket in the unit can secure the oval profile.

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.

$2.81

Original: $8.02

-65%
MARS 12005 Run Capacitor

$8.02

$2.81

MARS 12005 Run Capacitor

For service calls requiring a reliable motor start boost, the MARS 12005 Run Capacitor is a baseline HVAC part for condenser fan motors and small refrigeration compressors. This 5 MFD 370V run capacitor is an OEM-grade, non-PCB component engineered for AC motor run applications that demand consistent voltage and current adjustments. Its oval 370VAC capacitor housing is constructed from heavy-duty aluminum with a steel cap, featuring a physical interrupter for internal pressure safety. Rated for 50/60 Hz and built to EIA-456-A standards, it offers a high operational life of up to 60,000 hours. The compact 1.5-inch case height and 1/4-inch terminals ensure a quick capacitor replacement in tight electrical cabinets. Whether you are servicing a residential split system or a light commercial unit, this 5 microfarad capacitor provides the necessary frequency stability and phase shift for peak motor efficiency across a wide temperature range of -40°C to 70°C.

Key Benefits for Technicians
  • OEM-Grade Reliability: Designed to meet or exceed original equipment manufacturer specifications for 120 Series and similar AC motors.
  • Enhanced Safety: Internal physical interrupter prevents casing rupture under fault conditions; contains no hazardous PCBs.
  • Broad Compatibility: Standard 5 uF run capacitor rating fits a wide variety of fan motors, blowers, and small pump systems.
  • Durable Construction: Moisture-resistant aluminum housing and standard quad-blade terminals facilitate secure, long-lasting connections.
Common Questions

Can I use a 440V capacitor if the original was 370V?
Yes. In HVAC applications, you can always go up in voltage rating (to a 440V unit), as this indicates the maximum breakdown voltage the dielectric can handle. However, you must never go below the original voltage rating.

What is the difference between uF and MFD?
In the context of HVAC capacitors, they are identical. Both represent microfarads. This 5 MFD unit is electrically equivalent to any 5 uF capacitor.

Does the oval shape matter for performance?
The shape (oval vs. round) does not affect the electrical performance of the circuit. As long as the capacitance (5 MFD) and voltage (370V or higher) match, the only concern is ensuring the mounting bracket in the unit can secure the oval profile.

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

Shipping & Returns

Description

For service calls requiring a reliable motor start boost, the MARS 12005 Run Capacitor is a baseline HVAC part for condenser fan motors and small refrigeration compressors. This 5 MFD 370V run capacitor is an OEM-grade, non-PCB component engineered for AC motor run applications that demand consistent voltage and current adjustments. Its oval 370VAC capacitor housing is constructed from heavy-duty aluminum with a steel cap, featuring a physical interrupter for internal pressure safety. Rated for 50/60 Hz and built to EIA-456-A standards, it offers a high operational life of up to 60,000 hours. The compact 1.5-inch case height and 1/4-inch terminals ensure a quick capacitor replacement in tight electrical cabinets. Whether you are servicing a residential split system or a light commercial unit, this 5 microfarad capacitor provides the necessary frequency stability and phase shift for peak motor efficiency across a wide temperature range of -40°C to 70°C.

Key Benefits for Technicians
  • OEM-Grade Reliability: Designed to meet or exceed original equipment manufacturer specifications for 120 Series and similar AC motors.
  • Enhanced Safety: Internal physical interrupter prevents casing rupture under fault conditions; contains no hazardous PCBs.
  • Broad Compatibility: Standard 5 uF run capacitor rating fits a wide variety of fan motors, blowers, and small pump systems.
  • Durable Construction: Moisture-resistant aluminum housing and standard quad-blade terminals facilitate secure, long-lasting connections.
Common Questions

Can I use a 440V capacitor if the original was 370V?
Yes. In HVAC applications, you can always go up in voltage rating (to a 440V unit), as this indicates the maximum breakdown voltage the dielectric can handle. However, you must never go below the original voltage rating.

What is the difference between uF and MFD?
In the context of HVAC capacitors, they are identical. Both represent microfarads. This 5 MFD unit is electrically equivalent to any 5 uF capacitor.

Does the oval shape matter for performance?
The shape (oval vs. round) does not affect the electrical performance of the circuit. As long as the capacitance (5 MFD) and voltage (370V or higher) match, the only concern is ensuring the mounting bracket in the unit can secure the oval profile.

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.