![[2025 Updated] BlueStars 540-648 uF MFD 110-125 VAC Volt Run Round Start Capacitor ยฑ20% CD60 Replacement Part - Fit OEM Single Phase Motor Capacitors Condenser Straight Cool Heat Pump Air Conditioner](https://m.media-amazon.com/images/I/71b3arfVRPL._AC_SL3840_.jpg)






Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.
โก Power your gear with confidence โ the capacitor that never quits!
The 2025 Updated BlueStars 540-648 uF Run Round Start Capacitor is a premium, UL & TรV certified replacement part designed for single-phase motors in air conditioners, heat pumps, and general electric motors. Featuring a robust 110-125 VAC rating, ยฑ20% capacitance tolerance, and a wide operating temperature range (-40โ to +149โ), it guarantees reliable motor startup and operation. Its universal fit with 1/4" quick-connect terminals and advanced safety features like a 10,000 AFC anti-explosion switch make installation easy and safe. Backed by lifetime protection, this capacitor is engineered for professionals who demand durability and peace of mind.














| ASIN | B09TKVVDPT |
| Best Sellers Rank | #1,825 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Industrial Electrical Capacitors |
| Brand | BlueStars |
| Brand Name | BlueStars |
| Capacitance Tolerance | 20% |
| Customer Reviews | 4.4 out of 5 stars 95 Reviews |
| Included Components | 1 |
| Item Dimensions W x H | 1.81"W x 3.35"H |
| Item Shape | Round |
| Manufacturer | BlueStars |
| Material | 540-648 MFD |
| Material Type | 540-648 MFD |
| Maximum Storage Temperature | 70 ยฐC |
| Maximum Voltage | 125 volts |
| Model | 540-648 uf/MFD 110-125 VAC |
| Mounting Type | Panel Mount |
| Operating Voltage | 125 volts |
| Part Number | 540-648 uf/MFD 110-125 VAC |
| Shape | Round |
| Upper Temperature Rating | 65 ยฐC |
A**J
Exact match
Easy to replace and works fine.
C**T
Great Capacitor, but you might not need it!
Purchased it because my air compressor kept tripping a breaker when it tried to start. Thinking it was the start capacitor, I purchased and installed this one (along with a new run capacitor because I thought they were both old so I might as well replace them both.) I turned on the compressor and...tripped the breaker. I tightened all the wire connections thinking that might be the problem and...tripped the breaker. Out of frustration and the need to have the compressor working, I took it to an electric motor repair shop. They tested the new capacitor (it was perfect) and installed it. Ran perfect. After paying $142 to the shop (grrr) I took it home and plugged it in. Tripped the breaker. Took it to another outlet on a different circuit and plugged it in. It started and ran perfectly. That's when it dawned on me that the problem was likely a faulty breaker. Switched out the breaker and flipped on the compressor. You guessed it, it ran fine. The moral of my $142 story is don't be dumb like me. Test your "bad" capacitor if you have that capability (I didn't). On the bright side, I have new start and run capacitors. :-)
D**E
Fit my air compressor motor housing
Received the correct item and it fit directly into the motor housing on my air compressor. Unfortunately it was not the problem. I think my centrifugal switch is bad. So time for a new compressor.
P**A
that it works
so far so good
D**F
New capacitor
Worked ok. Had more electrical connections then the one I was replacing so had to figure out which ones to use.
A**R
Just what i needed
Works great good price for delivery
R**K
Bad casings
Cheap junk. Order 4 total and 3 had cracked casings
J**T
excellent, but be safe
UNPLUG power. Then SHORT across old cap terminals with screwdriver BEFORE removing wires. Compressor motor works fine now.
Trustpilot
2 weeks ago
2 weeks ago