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robdingnagian1
 
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Brett A. Thomas wrote:
Ok, almost got it then, I think. Thank you, you've saved me many

hours!

So, I get three or four button and contactor blocks, like this one:


http://web4.automationdirect.com/adc/Shopping/Catalog/Pushbuttons_-z-_Switches_-z-_Indicators/Eaton_Cutler-Hammer_22mm_(E22_Series)/Emergency_Stop_-z-_Mushroom_Pushbuttons_-a-_Stations/E22JLB2N8B

I then connect them to a 40 amp, 24 volt contactor, such as this 2

pole
model:

http://store.yahoo.com/waterheater/c2con40amp2p.html

I also connect one side of the contactor to a 30 amp/220 volt circuit

on
my existing subpanel, and the other side to the input of the new

subpanel.

Assuming all this is correct, I only have one question - does the
contactor step the 220 down to 24v for the buttons? Or do I need a
seperate transformer to do that? Something like this, maybe?


http://www.surpluscenter.com/item.as...tname=electric

Thanks again!

-BAT



You might want to consider some start buttons to turn it all back on.
They make pushbutton stations that have large "panic" buttons for the
stop button and also include a start. Also, check your codes as to what
gauge wire is going to need to feed your subpanel. See if they will
allow your particular setup.

I have some of those definite purpose contactors and didn't really know
a use for them. Now you have me thinking. I'm not plannning what you're
planning. But, the noggin is smoking. As I've never used one and don't
know their proper wiring, I do have this question. Can several
pushbutton stations operate the same contactor or would there need to
be a series of contactors? I've only wired magnetic starters and one
per machine. I haven't tried to feed a subpanel with them.

I look forward to seeing how this thread progresses when some of the
electrician types get home from work.
Eric T. in MN

ps. Brett, where are you located?