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Dual Run Capacitor Round CBB65 30/5uF mfd 450V AC 40/85/21 Aluminum Case with Terminal for Air Conditioner Compressor Motor Heat Pump Condenser

Dual Run Capacitor Round CBB65 30/5uF mfd 450V AC 40/85/21 Aluminum Case with Terminal for Air Conditioner Compressor Motor Heat Pump Condenser

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$13.24at DevHarfingtonChecked Nov 9

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Price facts

  • Last seen at $13.24 at DevHarfington on Nov 9.

Our take on the Dual Run Capacitor Round CBB65 30/5uF mfd 450V AC 40/85/21 Aluminum Case with Terminal for Air Conditioner Compressor Motor Heat Pump Condenser

This is a round CBB65 dual run capacitor with a 30 µF compressor section and a 5 µF fan section, rated 450V AC and built for 50/60 Hz single-phase motors. The aluminum case measures about 125 mm long by 50 mm across, and the top has three 4-pin terminals marked HERM, FAN and C. It is a standard replacement part for air conditioner compressors, heat pump condensers, refrigeration and motor start/run circuits. Compared with single-section capacitors it replaces two parts with one can, and the 450V rating gives headroom over 370V and 440V types; the trade-off is that it must match the original microfarad values and physical size to fit the mounting bracket and wiring.

Best forReplacing a bulged or weak dual run capacitor in an AC condenserHeat pump and refrigeration compressor start/run circuitsHVAC techs and DIYers servicing 50/60 Hz single-phase motorsUnits that need a 30 µF hermetic compressor and 5 µF fan section in one can
Pros
  • Two capacitances in one can: 30 µF for HERM and 5 µF for FAN
  • 450V AC rating gives margin over common 370V and 440V capacitors
  • ±5% tolerance on rated capacity
  • Metallized polypropylene element with low loss and heat resistance
  • Three clearly marked 4-pin terminals simplify wiring
  • Aluminum case resists corrosion and dissipates heat
Cons
  • Must match the original microfarad values exactly; wrong values strain the motor
  • Round 50 mm by 125 mm body may not fit every mounting bracket
  • No bleed resistor or mounting hardware included
  • Climatic category 40/85/21 limits it to moderate temperature ranges
  • Fails silently with age, so no warning before the compressor stops

Dual Run Capacitor Round CBB65 30/5uF mfd 450V AC 40/85/21 Aluminum Case with Terminal for Air Conditioner Compressor Motor Heat Pump Condenser prices at every store

  • DevHarfingtonNew

    In stockReturn policy

    $13.24Checked Nov 9
    Visit DevHarfington

About the Dual Run Capacitor Round CBB65 30/5uF mfd 450V AC 40/85/21 Aluminum Case with Terminal for Air Conditioner Compressor Motor Heat Pump Condenser

This CBB65 dual run capacitor is built with metallized polypropylene film in a round aluminum case. It has low loss, heat resistance and resistance to overvoltage shock, and it is designed for a long service life.

It is used for starting and running a single-phase motor in a 50Hz/60Hz AC power system. It suits air conditioners, air compressors, motors, refrigerators, heat pump condensers, HVAC equipment, generators, lamps and fans. It can replace a motor or compressor capacitor that is burnt out or weak.

The top has three terminals: HERM for the compressor, FAN for the fan, and C for the common line. Each terminal has 4 pins.

Model
CBB65
Type
Dual run capacitor, round
Material
Metallized polypropylene, aluminum case
Capacitance
30+5 uF
Tolerance
±5%
Rated voltage
450V AC
Frequency
50/60Hz
Climatic category
40/85/21
Terminals
HERM, FAN and C; 4+4+4 lead end
Body size
125 x 50 mm / 4.9 x 2 in (L x D)
In the box
1 x CBB65 capacitor

Questions and answers

How do I know if my AC needs this capacitor?
Common signs are the compressor humming without starting, the fan not spinning, or a bulged top or leaking oil on the old capacitor. Check the label on the old part for 30/5 µF and 450V before ordering.
What do the HERM, FAN and C terminals mean?
HERM connects to the compressor circuit, FAN to the outdoor fan motor, and C is the common line shared by both. Each terminal has four pins for secure lead connections.
Can I use this in place of a 370V or 440V capacitor?
Yes, as long as the microfarad values match. A 450V AC rating meets or exceeds the voltage rating of most residential AC and heat pump capacitors.
Will it fit my unit?
Measure the old capacitor: this one is about 125 mm long and 50 mm in diameter. If your bracket holds a round can of that size and the old part is 30/5 µF, it should drop in.
Is this for start or run duty?
It is a run capacitor, used continuously while the compressor and fan motor run. It is not a start capacitor and does not replace one.
What is in the box?
One CBB65 dual run capacitor. Mounting straps, screws and wiring are not included.
Where is the Dual Run Capacitor Round CBB65 30/5uF mfd 450V AC 40/85/21 Aluminum Case with Terminal for Air Conditioner Compressor Motor Heat Pump Condenser cheapest?
At DevHarfington, for $13.24, as of our latest check.