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Old 12-23-2013, 03:10 AM   #1
cbzdel
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Default panel mount fuses?

Can anyone fill me in on panel mount fuses? What a common size would be? Looking around they come in so many different sizes. Also if it's rated at 10amps at 240v can that be used on 120v with the samev rating?

Also, since I am doing this thought I might as well fuse everything right? I am running 1 pid, 1 timer, 1 pump all at 120v so I will just run a fuse to each one based at its max required amperage, correct? Or is this overkill?

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Old 12-23-2013, 11:52 PM   #2
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Are you referring to a fuse or a breaker? A fuse is one-and-done ( typically screw-in for a panel). A breaker has a switch that can be reset if it is overloaded or shorted.

On a breaker panel, you'd be using a two pole breaker that pulls 120v from each leg. Most guys will run either a 30a breaker or 50a breaker depending on how big your elements are and how many you want to run simultaneously.

Once run to your brewery panel, you can use the two legs in tandem to get 240v or using a neutral and either of the hot legs you can feed 120V to power pumps, etc.

This is assuming you'll be running a new line using a 4-wire line (H-H-N-G).

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Old 12-24-2013, 12:54 AM   #3
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I am taking about the small panel mount fuses such as these.

http://www.ebay.com/itm/250857792066?redirect=mobile

hopefully they link works

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Old 12-24-2013, 01:26 AM   #4
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Quote:
Originally Posted by cbzdel View Post
I am taking about the small panel mount fuses such as these.

http://www.ebay.com/itm/250857792066?redirect=mobile

hopefully they link works
That is a great choice for the fuse holder to be used in your build.

Please keep in mind that it is simply a fuse holder.

P-J
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Old 12-24-2013, 02:50 AM   #5
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Quote:
Originally Posted by cbzdel
I am taking about the small panel mount fuses such as these. http://www.ebay.com/itm/250857792066?redirect=mobile hopefully they link works
Ha! My bad, didn't quite follow your OP
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Old 12-24-2013, 05:01 AM   #6
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Panel mounted fuse holders are cool, but you should take into consideration the extra holes you have to cut. If you're good at that kind of thing then go for it.

After I cut the first couple of holes for my LEDs I knew I was going with inline fuse holders.

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Old 12-24-2013, 03:52 PM   #7
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Originally Posted by ChocolateMaltyBalls View Post
Panel mounted fuse holders are cool, but you should take into consideration the extra holes you have to cut. If you're good at that kind of thing then go for it.

Seriously? All it takes is a drill, center punch and a drill bit or even a spade bit because the holes are between 7/16" and 9/16" depending on what size you have. 22mm holes I can understand being difficult if you don't have a knockout punch or drill press but these little things take seconds to install.
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Old 12-24-2013, 04:05 PM   #8
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220v would require 2 holders (one for each phase) and is overkill IMO. The breaker will protect your 220v max current. Consider using one fuse for the pump and one for all other 120v (switches, PID, etc.)

There are a few different sizes of glass fuses, just buy the fuses that match your holder. Connections are usually solder or 1/4" quick connect.

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Old 01-13-2014, 06:18 PM   #9
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Quote:
Originally Posted by P-J View Post
That is a great choice for the fuse holder to be used in your build.

Please keep in mind that it is simply a fuse holder.

P-J

I'm very confused about the voltage/current ratings of fuse holders. I purchased similar fuse holders from Mouser and am wiring them into my panel. I noticed the quick-connect tabs were too small for my 14ga crimp on teminals so I checked the specs and the holder is rated for 10a. I'm putting them, as many 240V schematics suggest, after the 15a breaker. I assumed the requirements for the holder were determined by what was feeding it; is that not correct? If not, then what determines the required ratings of the holders? I'll be putting 10a and 1a fuses in the holders.
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Old 01-13-2014, 06:21 PM   #10
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Quote:
Originally Posted by ChocolateMaltyBalls View Post
Panel mounted fuse holders are cool, but you should take into consideration the extra holes you have to cut. If you're good at that kind of thing then go for it.

After I cut the first couple of holes for my LEDs I knew I was going with inline fuse holders.
Not a problem if you use a plastic enclosure
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