Anyone have a good source for Capacitors?

[Tim Pape]

I blew the start capacitor in my Grizzly 1033X Planer last week. This is the second time it has happened in the last two months. Unfortunately, Grizzly does not have them in stock and will not until late July. I can't wait that long because I am in the middle of making kitchen cabinets.

The spec is a 300v 250M

I can't seem to find one on the net, but must be looking in all the wrong places.
Any info is appreciated!

[Myk Rian]

Grainger has them.
Local motor repair shop.

[Tim Pape]

Grainger was one of hte first places I tried, but they don't have any that are 300V. They do have 330V. Is there any danger or concern for getting one with a higher voltage rating?

[Charles Lent]

Tim,

You won't have any problem using a capacitor with a higher voltage rating, if the physical size of the capacitor is acceptable, but you should try to find one that has as close to original capacitance as possible. 10% over is better than under size for capacitance.

Charley

[Tim Pape]

Thanks Charles, I'll give it a shot!

[Jeffrey Makiel]

I've order capacitors from McMaster-Carr. They sell to the general public and have quick shipping. Grainger is a bit odd if you do not have an account (with tax ID) with them. They may or may not sell to you depending on who is working the counter that day.

From my novice experience and research, as Charley said above, as long a the voltage of the new capacitor is rated the same or higher than the exiting one, you are fine. Most common ones are 370V followed by 440V. However, it is important to match the micro-Farad rating (uF) though.

-Jeff :)

[Mike Wilkins]

After checking with all the local electrical parts suppliers, who did not have what I was looking for, I stopped by the local electrical motor repair shop and got exactly what I needed.

[Tim Pape]

As far as the micro-Farad rating goes, the existing capacitor is 250. Most of the ones I see for sale have a range, 216-270 for example. Is that ok, or does it have to be right at 250 like the existing one? Thought I found a decent one at Grainger but it was much bigger than the one I am trying to replace and I'd like to be able to fit it in the existing cover.

[scott spencer]

As far as the micro-Farad rating goes, the existing capacitor is 250. Most of the ones I see for sale have a range, 216-270 for example. Is that ok, or does it have to be right at 250 like the existing one? Thought I found a decent one at Grainger but it was much bigger than the one I am trying to replace and I'd like to be able to fit it in the existing cover.

Many caps have a spec of +/-20%....250 is an average, so you may already have a 219 mfd or 267 mfd cap. Mathematically 250 micro-farads look like 0.000250, so 0.000216 or 0.000270 is pretty much decimal dust. That's not saying there's zero difference, but for this application that range should be fine.

[Brian Backner]

While both Grainger and McMaster-Carr have an excellent selection of capacitors, they are both expensive.

Try Burden's Surplus Center for a reasonable selection and decent prices:

Start caps: http://www.surpluscenter.com/sort.asp?catname=electric&keyword=EMSC

Run caps: http://www.surpluscenter.com/sort.asp?catname=electric&keyword=EMRC

Brian
Taxachusetts

[Mike Heidrick]

While both Grainger and McMaster-Carr have an excellent selection of capacitors, they are both expensive.

Try Burden's Surplus Center for a reasonable selection and decent prices:

Start caps: http://www.surpluscenter.com/sort.asp?catname=electric&keyword=EMSC

Run caps: http://www.surpluscenter.com/sort.asp?catname=electric&keyword=EMRC

Brian
Taxachusetts

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