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The PowerWell 45+5 MFD dual run capacitor is engineered for high-performance air conditioners and heat pumps, combining two capacitors into one compact, round design. Rated for 440 volts and built to rigorous USA standards, it ensures reliable motor starts and long-lasting operation across extreme temperatures. With a 5-year guarantee and compatibility with numerous OEM parts, it’s the smart, durable upgrade every professional needs to avoid costly downtime.
| ASIN | B01NAZJYWA |
| Best Sellers Rank | #1,935 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Industrial Electrical Capacitors |
| Brand Name | PowerWell |
| Capacitance | 45 Microfarad |
| Capacitance Tolerance | 5 |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,418) |
| EU Spare Part Availability Duration | 5 Years |
| Item Dimensions W x H | 2.38"W x 4"H |
| Item Shape | Round |
| Manufacturer | PowerWell |
| Material Type | Copper |
| Maximum Storage Temperature | 75 Degrees Celsius |
| Maximum Voltage | 440 Volts |
| Mounting Type | Snap-In Mount |
| Operating Voltage | 440 Volts |
| UPC | 714833366249 |
| Upper Temperature Rating | 70 Degrees Celsius |
R**L
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
D**R
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.
L**D
Good purchase.
Worked as described. I keep a couple of these on hand because they seem to go out at the most inconvenient time. Easy swap to get the AC unit back up and running. I would recommend.
J**N
Made my AC unit run!
Great capacitor at a very good price!
J**3
Failed in just over a year. Replaced by seller under warranty.
I purchased this in May 2023 to have on hand as a spare. It was installed in May 2024 when the original capacitor on my AC unit failed. I bought another of the same to have on hand. This unit worked fine until it failed on August 28 2025, so just over a year after install. I put the other on and we’ll see how long it lasts. I’ve messaged the seller about a warranty claim. Will update or edit once I see how that goes. Update: Seller promptly sent me a replacement under warranty. Changed my rating to 4 star for good customer service. Although it didn’t last as long as it should have the seller stands by its product.
G**O
Time will tell
Bought for a spare . My current PowerWell is about 5 years old and still working . I like that it is the correct diameter for my ac unit.
R**N
OK
OK
J**H
I was a HERO in 103 Degree Weekend
So, I bought two of them about a year ago as a just in case. It was Sunday evening just about 10pm, we had a 103 Degree scorcher of a day and the AC starts blowing out warm air and I'm like #@$^ ! and I tell the wife to start packing - its hotel night, then I remembered I had these Capacitors, now keep in mind I've never changed one in my life, but an Ol' AC Guy told me these are the #1 items that go out and they are easy to replace. So, I quickly jump on Youtube, see how they are changed out (make sure you write the color of the wires that match the poles), I turned off the 220v breaker and then you have to disconnect the thermostat inside (it has 24v running thru it), since mine was programmable, I simply pulled it off then went outside to the condenser unit and took the panel off (it took more time to take the panel off then to replace the Capacitor), then I had my wife write down how the wires were connected, I was very nervous because the capacitors have a lot of juice in them - you have to be careful that you aren't touching the blades with your bare hands, anyway - she wrote them down, I pulled the old one off, then reconnected the wires then went back and turned on the power outside, then went inside and reconnected the thermostat and I turned the AC back on (at thermostat) and NOTHING HAPPENED. I was about to just throw in the towel and then all of a sudden the condenser started and the unit started to start moving the freon....... My Wife Looked at me with the Look..... I WAS A HERO !!!! Don't Get One.... GET TWO !
T**C
Installé depuis plus de 12 mois et ce condensateur fonctionne très bien
M**I
Very happy with this purchase
M**E
Operational, same as shown in the description
D**C
Worked perfectly and easy to install
A**R
Exactly as described in description and picture, quick shipping as well