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MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor

MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor

Best price now

$15.95at AmazonChecked Nov 13

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Price facts

  • Last seen at $15.95 at Amazon on Nov 13.
  • Our take on the MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor

    The MARS 14291 is a dual round run capacitor rated 50/7.5 mfd at 440/370V, built for air conditioner compressors and condenser fan motors. It combines two capacitance values in one aluminum case, so one part serves both the compressor and the fan circuit. It is UL and CSA listed and carries a five-year warranty, which is longer coverage than many generic capacitors offer. It suits HVAC technicians and homeowners replacing a failed dual capacitor in a residential condensing unit.

    Best forHVAC technicians stocking a common dual valueHomeowners replacing a failed condenser capacitorCompressor and fan motor circuits in one partService calls needing a UL-listed, warrantied part
    Pros
    • Dual 50/7.5 mfd values cover compressor and fan in one can
    • 440/370V rating handles both common system voltages
    • UL listed and CSA certified
    • Five-year warranty
    • Aluminum round case with standard 3-terminal blade layout
    • Tolerance held to +/-6%
    Cons
    • Must match the original capacitance and voltage exactly
    • Wrong value or wiring can damage the compressor
    • Fails over time like any electrolytic capacitor
    • No mounting bracket included

    MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor prices at every store

    • AmazonNew

      Availability unknown

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      $15.95Free shippingChecked Nov 13
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    MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor price history

    Lowest price we've seen: $15.95 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.

    About the MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor

    The MARS 14291 is a dual run capacitor for HVAC systems. It is used in motor and compressor applications. It has a round aluminum case.

    It is rated 50/7.5 mfd at 440/370V and works at 50/60 Hz. It is UL listed and CSA certified, and it is tested and approved by leading US motor and compressor companies. It comes with a five-year warranty.

    Brand
    MARS
    MPN
    14291
    Capacitance
    50/7.5 mfd
    Voltage
    440/370V
    Shape
    Round
    Case material
    Aluminum
    Terminals
    3 (4, 3, and 2-Blades)
    Frequency
    50/60 Hz
    Tolerance
    +/-6%
    Certifications
    cUL Listed, UL Listed, CSA Certified
    Operating temp
    -40 to 70 degrees Fahrenheit
    Warranty
    5 years

    Questions and answers

    What does 50/7.5 mfd mean on this capacitor?
    It is a dual capacitor: one section is 50 microfarads for the compressor and the other is 7.5 microfarads for the condenser fan motor. Both share one case and one common terminal.
    Can I use it to replace a 370V-only capacitor?
    Yes, if the capacitance values match. The 440/370V rating means it is rated for both 370V and 440V systems, so it covers either.
    How do I know which value goes to the compressor?
    The larger value, 50 mfd, is normally the compressor (HERM) and the smaller, 7.5 mfd, is the fan (FAN). Match the terminals to the original wiring before removing the old part.
    Does it fit the same space as my old round capacitor?
    It is a round aluminum case with standard blade terminals, but case diameter and height vary between brands. Measure the old can and compare before ordering.
    Is the five-year warranty worth relying on?
    It is longer coverage than many budget capacitors carry, but keep the receipt and check the warranty terms, since labor and shipping are usually not covered.
    What temperature range does it handle?
    It is rated from -40 to 70 degrees Fahrenheit, which covers typical outdoor condensing unit conditions.
    Where is the MARS 14291 USA 50/7.5 mfd 440/370V Dual Round Run Capacitor cheapest?
    At Amazon, for $15.95, as of our latest check.

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