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Cap AC rating — Parallax Forums

Cap AC rating

LightfootLightfoot Posts: 228
edited 2007-12-17 01:45 in General Discussion
Does a motor run capacitor with a 250vac rating have a dc capacity of 500 volts?

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Comments

  • Dennis FerronDennis Ferron Posts: 480
    edited 2007-12-17 01:45
    Not an expert, but I doubt it. It might have a slightly higher DC tolerance (maybe 340 volts DC?) just because the peak-to-peak of AC is higher than its RMS, but it certainly won't be double the AC voltage. Just use two of them in series to get 500 volts rating, but remember that it will halve your capacitance when you do that.
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