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Delta 50-850 Dust Collector pops breaker

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Forum topic by JohnBoat posted 05-30-2020 01:51 PM 166 views 0 times favorited 3 replies Add to Favorites Watch
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JohnBoat

1 post in 37 days


05-30-2020 01:51 PM

I just purchased a used Delta 50-850 Dust collector. It ran great for about 3 minutes then popped the breaker. I did some tests and the Capacitor mounted on the outside of the motor was bad. I was able to order a new one replaced it and it ran for a few minutes again a popped the breaker again. It looks like the second Capacitor lasted just a few minutes. Any suggestions on what could be blowing the Capacitors


3 replies so far

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Rick Dennington

6947 posts in 3965 days


#1 posted 05-30-2020 02:26 PM

I have the same Delta 50-850 d.c., and I bought it brand new in 1990. Several years ago I had to replace the start capacitor cause it would do the same thing…..start, run for a minute, then shut down. I have it on its on separate breaker so I knew it was the capacitor. Replaced it, and no more problems. What size breaker is it on…? It needs to be on its on breaker ( mine’s on a 20 amp breaker). Here’s a pix of mine w/ a Wynn filter.

-- " There's a better way.....find it"...... Thomas Edison.

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clagwell

246 posts in 563 days


#2 posted 05-30-2020 03:04 PM

If both capacitors were destroyed within a few minutes it’s almost certainly caused by the centrifugal switch not opening. There are several possible reasons for this.

1) The motor is wired for 240V and you are trying to run it on 120V.

2) The centrifugal is sticking mechanically. It could be broken or just need cleaning and lubricating.

3) A history of rapid stop/start cycles has damaged the rotor bars.

If the motor was working before you bought it but never afterwards then scenario 1) is the most likely.

-- Dave, Tippecanoe County, IN --- Is there a corollary to Beranek.s Law that applies to dust collection?

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clagwell

246 posts in 563 days


#3 posted 05-31-2020 01:07 PM

How did you test the capacitors? What exactly makes you think the second one also failed?

What breaker popped? The overload on the motor or the breaker in your panel?

-- Dave, Tippecanoe County, IN --- Is there a corollary to Beranek.s Law that applies to dust collection?

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