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45+5 MFD 45/5 uf 370 or 440 Volt Dual Run Round Capacitor PW-45/5/R for Condenser Straight Cool or Heat Pump Air Conditioner - Guaranteed to Last 5 Years

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Availability: In Stock.
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Arrives Wednesday, Aug 5
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Features

  • 45+5 uf or 45+5 MFD 440 Volt AC Capacitor. Replaces BOTH 370 VAC & 440 VAC capacitors
  • Can size measures 2-3/8" diameter x 4" tall. Operating temperature range -40 C. to +70 C/ -40F to 158
  • Built to the TOUGHEST USA standards for AC motor run capacitors including EIA-456-A and IEC 60252-1:2001
  • GUARANTEED TO LAST 5 YEARS. We are extremely passionate about our products and are fanatical about quality control in our workshops. ORDER NOW with peace of mind. No Catches
  • Replacement for 97F9895 , Z97F995 , 97F9895BZ3 , 27L880 , TRCD455 , TRCFD455 , PRCFD455 , 27L889 , 97F9851 , 97F9851S , 12788 , RC0114 , Z97F9895 , 97F9895 , TT-CAP-45/5/440R , HC98KA046 , TP-CAP-45/5/440R , CAP050450440RT , HC98JA046 , HCKS450D050R440Z , 62

Description

A capacitor is an electric component that temporarily stores an electrical charge. A dual "run capacitor" supports two electric motors, such as in large air conditioner or heat pump units, with both a fan motor and a compressor motor. It saves space by combining two physical capacitors into one case. The dual capacitor has three terminals labeled "C", "FAN", and "HERM", which stand for the Common, Fan, and HERMetically sealed compressor. Dual capacitors come in a variety of sizes, depending on the capacitance (µF or MFD), such as 40 plus 5 µF, and also the voltage. A 440 volt capacitor can be used in place of a 370 volt, as it is build better, but the 370 can’t be used in place of a 440 volt. It will work for a while and will fail prematurely, as exceeding the capacitor's rated voltage will cause the dielectric to break down and the capacitor to short out. Same as an electric wire- 600V rated wire is better than 300V one .The capacitance(µF or MFD) must be the same or stay within 10%+ or 5%- of its original value . Example: 50 µF cap can be substituted by 47.5 to 55 µF with the same or better voltage ratings capacitor . Round cylinder- shaped dual run capacitors are commonly used for air conditioning, to help in the starting of the compressor and the condenser fan motor.Round capacitor can be used to substitute oval shape one with the same MFD AND Volt specs You will ask “Why I need a Cap that is rated 440V in my A/C?” Answer: You need to realize that a motor is an inductive device. When the supply voltage is applied to the motor run winding, the voltage across the start winding will be increased to a higher voltage value. A motor acts like a transformer with the run winding acting as the primary and the start winding acting as the secondary. This is why the capacitor has a much higher voltage rating than the 230 being the supply voltage. If a Capacitor is not EIA-456-A approved means it is not approved for US market.

Capacitance: 45 Microfarad


Brand: PowerWell


Material: Copper


Shape: Round


Maximum Storage Temperature: 75 Degrees Celsius


Capacitance: 45 Microfarad


Item Shape: Round


Maximum Storage Temperature: 75 Degrees Celsius


Operating Voltage: 440 Volts


Capacitance Tolerance: 5


Maximum Voltage: 440 Volts


Mounting Type: Snap-In Mount


Upper Temperature Rating: 70 Degrees Celsius


Material Type: Copper


Item Dimensions W x H: 2.38"W x 4"H


EU Spare Part Availability Duration: 5 Years


Brand Name: PowerWell


Manufacturer: PowerWell


UPC: 714833366249


Model: PW-45/5/R


Part Number: PW-45/5/R


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Works well, sized to my original running cap
Out of the box, I measured capacitance to be 44.5uF which is well within the 5% tolerance (98.89% or 1.11% off depending on how you want to view it). I've replaced my existing with a few others and they've always been smaller so it would slip right through the capacitor holding bracket. Those I just left the cap sitting on the platform while it was still inside the bracket. This was sized to the original so I was actually able to use the holding bracket by loosing the screw, inserting this capacitor, then tightening the screw so the capacitor is only held by the bracket and is off the platform. Easily hooked up and fan came right on when I re-inserted the switch at the disconnect. I am hoping it will last the expected 5 years - will try to remember to update this post for when it fails. ... show more
Reviewed in the United States on June 7, 2026 by Kai

  • Works like a charm
Our HVAC system started having trouble cooling the house. When I checked it, I noticed the fan on the unit was running slowly. I did some research and found that the issue could be the capacitor, the fan, or both. I inspected the unit and confirmed that the part number for the capacitor was E229850, then used that information to find a replacement. The installation was not too difficult, and now the HVAC runs like new. The only thing worth noting is that this capacitor has a slightly larger diameter, despite having the same rating as the old one. So be aware that you may need to mount it differently. ... show more
Reviewed in the United States on May 19, 2026 by Rondi

  • THEY ARE THE REAL DEAL! THE PRICE, QUALITY AND 5 YEAR GUARANTEE CAN'T BE BEAT
This capacitor is the real deal and for the price I don't know how it can be beat. The capacitor has a 5 year guarantee that it will work. I installed my first one in June 2020 and it just fell below the acceptable level where it needs to be replaced. It hasn't completely failed but don't want to risk damaging the fan motor if I did wait until it completely failed. It ran almost every day for 6 years in Midwest temperatures of over 100 in the summer (AC) and minus 30 below in the winter (heat pump) at times. Replacing them myself has saved me over $800 vs. a technician. ... show more
Reviewed in the United States on June 10, 2026 by Cindy

  • Great product.
Fantastic deal. Saved me hundreds from an HVAC call. Fixed my AC.
Reviewed in the United States on April 18, 2026 by Shawn Coblish

  • Brought the Cooling System Back to Life
This power well capacitor worked properly and helped restore performance to the AC or heat pump system. After installation, the unit started and ran more consistently without hesitation. The build quality feels solid for a replacement component. Installation should be handled carefully if working around electrical systems, but overall it’s a dependable part that solved the issue effectively. ... show more
Reviewed in the United States on May 12, 2026 by Marie Phillips

  • Capacitor for heatpump
Excellent product perfect for for my heatpump easy to install.
Reviewed in the United States on June 19, 2026 by Bob allen

  • It’s easy to replace and less expensive to do it yourself.
Easy to replace. It was the same size as the original one. Everything was compatible and unit and fan came back on after replacing. Sorry didn’t get a picture or video.
Reviewed in the United States on April 14, 2026 by DeMarcus Eckford Sr

  • Easy to install these
Fixed our air conditioner in 5 minutes would have cost us hundreds very easy to install, just take a picture of the unit and compare, it’s okay if it’s bigger than original part
Reviewed in the United States on January 27, 2026 by Ruger Hummel

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