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Deal.ai › Air Conditioner Capacitors
One Power
ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B

ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B

4.8(4 ratings)

Best price now

$18.90at AmazonChecked 14 h ago

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Price facts

  • Lowest price today: $18.90 at Amazon (checked Nov 14, 2026).

Our take on the ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B

The ONE Power 50/5-MFD is a round dual run capacitor for air conditioner condenser units. It packs two capacitors in one can: a 50 MFD section for the compressor and a 5 MFD section for the condenser fan motor. It is rated for 440 VAC, 50/60 Hz, with ±5% tolerance and a -25°C to 85°C operating range. It suits a DIYer or technician replacing a failed dual run cap in a matching unit; the main trade-off against premium brands is that it is a budget part with little track record on lifespan.

Best forReplacing a failed 50/5 MFD dual run cap in a condenserCompressor and fan motor in one can, saving wiringWarm-climate units that see high ambient temperaturesBudget repairs on older or secondary A/C systems
Pros
  • Two capacitances in one round can
  • 440 VAC rating covers most residential condensers
  • ±5% tolerance is the usual spec for this part
  • Wide -25°C to 85°C operating range
  • Simple two-terminal-per-section wiring
Cons
  • Budget brand with little long-term reliability record
  • No discharge resistor mentioned, so discharge before handling
  • Round can only fits mounts sized for its diameter
  • No mounting bracket or hardware stated in the box

ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B prices at every store

  • AmazonNew

    Availability unknown

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    $18.90Checked 14 h ago
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ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B price history

Lowest price we've seen: $18.90 on Nov 14 at Amazon. Tracked across 1 store since Nov 14.

About the ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B

The ONE Power CBB65B is a round, dual run capacitor for 440-volt applications. It has a capacitance of 50/5 MFD with a tolerance of ±5%.

It operates at 50/60Hz and across a temperature range of -25°C to 85°C. It is a protected capacitor, and it is used in industrial and commercial settings.

Brand
One Power
Model
CBB65B
Type
Dual run, round capacitor
Capacitance
50/5 MFD
Tolerance
±5%
Voltage
440 V
Frequency
50/60Hz
Temperature range
-25°C to 85°C
Color
Gray

Specifications

color
GraySource

Questions and answers

Will this replace my old 50/5 MFD capacitor?
Yes, if your old cap is also a dual run 50/5 MFD rated 370 or 440 VAC. Match the capacitance and voltage, and check the can diameter fits your mount.
What do the two numbers mean?
50 MFD is the compressor section and 5 MFD is the fan section. Each has its own terminals, so wire the herm, fan and common leads to the matching posts.
Is 440 VAC enough for my unit?
It covers most residential condensers, which commonly run 370 VAC caps. A 440 VAC rating gives headroom, but never use a lower voltage rating than the original.
How do I know it has failed?
A bulged top, leaking oil, or a compressor or fan that hums and won't start are common signs. Test capacitance with a meter before replacing.
Does it come with mounting hardware?
The listing describes only the capacitor itself. Reuse the existing strap or bracket from the old cap.
Can I install it myself?
Only if you shut off power at the disconnect and discharge the old capacitor first. Capacitors hold a charge and can shock you.
Where is the ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B cheapest?
At Amazon, for $18.90, as of our latest check.
What do buyers say about the ONE Power 50/5-MFD Dual Run A/C Capacitor CBB65B?
Rated 4.8 out of 5 from 4 ratings.