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Home Brew Forums > Home Brewing Beer > Electric Brewing > Distribution block, what to get?
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Old 03-15-2011, 07:13 AM   #11
blackalice82
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Originally Posted by lschiavo View Post
I am looking myself. Here is one option I found.

http://www.elecdirect.com/catalog/80...5828651cc.aspx
Nice find.


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Old 03-15-2011, 03:27 PM   #12
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Looks nice. Any issues using the back plate as the heat sink for the ssr's?
There is a heat sink behind the plate but the SSR's don't really get hot.


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Old 03-16-2011, 05:07 PM   #13
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Originally Posted by Walker View Post
I chose to use modular DIN rail mounted terminal blocks for my power distribution. They were cheaper than the big brick type distribution blocks and gave me the flexibility of adding more modules later if I need to.

My entire 50A distribution block (ground + two hots + neutral) cost me about $8 or so.

I put links to the pieces and parts I used, all from mouser.com, in this post
I used the same ones, but bought mine from factorymation... darn, wish I'd seen your post before I bought mine cuz factorymation only sells full boxes of terminal blocks. I can build about 3 more control panels with the supply I've got. I may sell some on here to recoup some of the cost.. I have a BCS controlling the whole thing, so I may end up building another panel for my serving and fermentation temps, nice to have extra on hand for that.
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Old 03-16-2011, 05:20 PM   #14
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Originally Posted by bbognerks View Post
I would get 30 Amp rated ones. Radio shack sells terminal strips that are supposedly 20 amps, but they look wimpy compared to the 30 amp strips I got from Home Depot.
If I were only those terminal strips for one phase of the 240v system would the amperage going through still be the total of what I'm using (~24a at %100). I would use two terminal strips, one for each phase, so does that effectively cut the amperage on each phase in half?
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Old 03-16-2011, 05:34 PM   #15
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Originally Posted by rcm_rx7 View Post
If I were only those terminal strips for one phase of the 240v system would the amperage going through still be the total of what I'm using (~24a at %100). I would use two terminal strips, one for each phase, so does that effectively cut the amperage on each phase in half?
No, the current going across each one is still 24a. Suppose you had a 5500W element - that would draw ~23A at 240v. That's being supplied by two phases of 120V. So each one would need to supply 2750W.

2750W/120v = ~23A
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Old 03-16-2011, 06:31 PM   #16
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Ok, that makes sense. Thanks for clearing it up!


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