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Old 11-22-2013, 05:53 PM   #11
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I did have a momentary "oops" when I realized that I hadn't considered one aspect of the 3rd dimension. Things that stick out the back of the front panel and are close to the edge can potentially hit the frame when the panel swings out.
Hence my warning about taking time to plan ahead before breaking out the drills, punches, saws.

I learned this lesson the hard way long ago, due to my youthful exuberance.

Just trying to save some heart-ache and $$ for da' folks.
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Old 11-22-2013, 06:13 PM   #12
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I did have a momentary "oops" when I realized that I hadn't considered one aspect of the 3rd dimension. Things that stick out the back of the front panel and are close to the edge can potentially hit the frame when the panel swings out.
Very good point. To clarify, the edge that matters is the one opposite the hinges, and placing the device such that the outermost protrusion inside the box is at least as far away from the edge as its depth will give you plenty of clearance. You really don't need to place it that far away because the fixed point of rotation is at the hinges, but for any less than that it is very prudent to verify clearance before you cut.
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Old 11-22-2013, 06:34 PM   #13
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Thanks Jeffmeh, you put that much better than I did!

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Old 11-22-2013, 07:38 PM   #14
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Thanks Jeffmeh, you put that much better than I did!
No problem, as there have plenty of instances where those roles have been reversed.

If my Trigonometry weren't decades stale, I might even have been able work out the formula that prescribed the minimum distance from the edge, based upon the depth of the device below the panel and the length from the hinges to the opposite edge.
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Old 11-22-2013, 08:01 PM   #15
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Back to the OP:

Which option worked best for you or you wish :
1) long rows of din mounted components
2) short rows with segmentation of parts plated together. Breakers and coils on a rail. All power on another.
3) I just went for it and it worked


I have a relatively large panel at 24x18x8. Just for the the components on the backplane - the power comes in from the inlet flange at the bottom left. Used left instead of right because it is a shorter distance and I cross fewer lines and hoses. From there to the distribution blocks that are vertically mounted. From the bottom up - Ground and neutral, then across the top to Hot1 and Hot2. The Hot1 and Hot2 DIN distribution blocks are horizontal across the top. Power then flows from there down to the breakers, then Hot1 goes to contactors and Hot2 goes to a 120v distribution block and the SSR's to the element contactors.

From the element contactors then to the element outlets.

All switch buttons, alarms, and PIDs are then wired from the front panel to the components and 120v dist block.



http://i160.photobucket.com/albums/t...photo-12-1.jpg

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Old 11-22-2013, 10:13 PM   #16
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i did din mounted scr's, breakers, fuses, and terminal blocks. Contactors and the big distribution block are screwed to the back panel.

I based my internal layout on my pid's and fit some of the interenals around them. Tried to keep the scr's in line with the contactors then rounded back to the bottom outlets.







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Old 11-22-2013, 11:17 PM   #17
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Stlbeer: brilliant about the neutral connection. I think that makes the most sense coming back out of the components. Looks great.

WP: that's really clean. I want my panel to be very very clean in the build I like the wire guides on the edge to keep it nice and tidy.

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Old 11-23-2013, 02:07 AM   #18
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Stlbeer: brilliant about the neutral connection. I think that makes the most sense coming back out of the components. Looks great.

WP: that's really clean. I want my panel to be very very clean in the build I like the wire guides on the edge to keep it nice and tidy.
Thanks, but the train wreck hasn't occurred yet....

I'll post picts when it's actually done
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Old 11-24-2013, 12:29 AM   #19
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Keep us posted.

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Old 11-24-2013, 12:49 AM   #20
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Everything on my panel is on dins except the ssrs. I have auber contactors an I found some attachments to put them on the rails, I got them from mouser. If I ever have to replace them I think it will be easier. Of course my panel is really small so doing anything in there is kind of a chore

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