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Using 216uF 330V motor start/run caps as 20A capacitive current limit.
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Psi:
As the subjects says,  can you use a 216uF 330V motor start/run caps as 20A capacitive current limit at mains voltage?
https://www.digikey.com/product-detail/en/cornell-dubilier-electronics-cde/PSU21630A/338-4153-ND/1551642

The capacitive reactance of 216uF at 60hz is correct for 19.5A. (12.28 ohms)

My question is more about how the capacitor will handle this task and if there are any dangers from it overheating etc..

(I'm fully aware of the dangerous working with mains voltage on things that are not mains isolated.)

wraper:
It's crappy current limit. When you will connect such capacitor to the mains, inrush current can easily exceed your calculated current many times and blow fuses. And char switch or connector you used to close the circuit.
Psi:
yep, makes sense.

For this application it doesn't matter too much if inrush exceeds the current limit for a sec.
Also i can bring it up slowly with a variac so the inrush isn't a problem.
Zero999:
I doubt it will be able to pass that current for long, without overheating. No mention of the maximum ripple current or ESR is mentioned in the data sheet, but a power factor of 10% maximum, implies it will dissipate hundreds of Watts, even if it's less than that.
Psi:

--- Quote from: Zero999 on March 09, 2020, 10:34:55 pm ---I doubt it will be able to pass that current for long, without overheating. No mention of the maximum ripple current or ESR is mentioned in the data sheet, but a power factor of 10% maximum, implies it will dissipate hundreds of Watts, even if it's less than that.

--- End quote ---

yea, these are the sort of questions i'm interested to know about.
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