WTB : Film capacitor 1500Vdc / 600Vac minimum

[pinnocchio]

Hi,

Looking for 6x >=1500Vdc / >=600Vac film capacitors. I prefer new or NOS but not something from the stone age era... I'm building a filtered power bar so I do not need audio grade. They can also be paper in oil.

Thanks
Do

 

[JonSnell Electronic]

A clue on capacitance would be useful.

 

[pinnocchio]

That would be a good idea indeed! Hehe

I'm looking between 2uF and 4uF X1 safety rated. Sorry about forgetting this information.... Don't know where my head was.

Thanks
Do

 

[JonSnell Electronic]

Here are a few. Why such a high voltage?
Polypropylene Film Capacitors | RS Components

 

[pinnocchio]

Hi JonSnell,

It is to follow the Canadian requirements for inline capacitors. I have found a batch of X1 safety caps so I'm good.

Thanks
Do

 

[ticknpop]

You only need 275VAC rated X caps in Canada, where do you get 600 VAC from?

 

[MR Overclock]

Why do you need such High voltage rating stuff?
If your running 450Volts then your capacitor max rating should be 30% higher than that, and to be really really safe use capactiors 50% higher than operating voltage

You can always put your capactiors in series if you want higher voltage ratings, not sure if it will cause any distrtion though in amps

 

[pinnocchio]

Please read this article below, this is what I'm going build or a very close derivative

A No-Nonsense Line Conditioner Article By Mike Van Evers Sound Practices Magazine Online

Thanks
Do

 

[JonSnell Electronic]

No electrical reason for such high voltage apart from that was all that was available or in the spares box at the time, I expect.

 

[ticknpop]

The writer of the article uses OIL caps for line filtering, potentially dangerous as they fail short when overvoltaged and tries to reduce the risk by using Movs to clamp the voltage on higher voltage oil caps. This was the industrial practice 30 - 50 years ago before X designed caps specifically for AC line filtering caps in large values were available This is dangerous and unsafe. Use AC line rated X caps of the same value, smaller cheaper, safer .......................... it's your life you choose. Good X caps available at all the local suspects Digikey, Mouser, Allied, etc

 

[pinnocchio]

Hi Ticknpop,

That's what I said at post #5, I was aiming for the X1 safety rated caps, but my requested voltage may be too high. The guy from the article was refering to meeting UL specifications but most of you are saying this is not right so I'll just double check to make sure.

Maybe I should find a more modern article for that type of project?

Thanks
Do

 

[ticknpop]

the filter is correct, but the part (cap type) is outdated

 

[pinnocchio]

Thanks!

 

[Greg Stewart]

While I don't believe they are X1 rated, there are some 1500uf/700VDC Ducati Energia polyprop caps on US EBay for about $70 each.

Very large!

Greg in Mississippi

 

[pinnocchio]

No need, I found what I needed with X1 480Vac caps. After a few people told me this was an old design philosophy I decided to follow their recommendations

Thanks
Do