Nicest and most versatile way to terminate commercial panels? - Page 3 - Electrician Talk - Professional Electrical Contractors Forum
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Old 01-21-2018, 06:11 PM   #41
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Originally Posted by active1 View Post
Ya DIN rail.
I looked, sorry no picks.

It's the only consistent clean way I seen.
Open the can and in 5 seconds you know what is what.

Need to add a circuit, run it to the can, the circuit could already be there.
All you should have to do in the panel is turn off that circuit while you connect and verify it's off and your switching the correct one.

This way you don't need to remove the dead front.
In some locations opening a panel can involve a space suit and closing off an area with barriers.
Don't get me wrong, I lust for super neat panels, but even that for me would be too much. As far as safety, I am not sure that it is any safer to try to run a new circuit in a JB with 48 x 2 exposed terminal blocks or in the panel directly. While I agree that it would be easier to troubleshoot compared to a bunch of marrette connectors, I think putting that wire into where there a bunch of connectors would be less of a hazard then open terminals.

Cheers

John
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Old 01-21-2018, 06:47 PM   #42
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I like a tidy pull can as much as any electrician.

I feel like a terminal block is a bit much for my taste.

I actually like long/loose wire in a downward facing can. Everything kinda droops down and is easy enough to work on w/o tilting my head up or putting my arms over my head for too long.

I'm also extremely lazy and I've never worked on a can trimmed that way.
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Old 01-21-2018, 06:54 PM   #43
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DIN rails & terminal blocks are too expensive, take too much time, and are of no utility for common commercial circuits.

They shine when one must deal with complex factory-assembly machines.

( also known as 'transfer machines' as they transfer the article step by step down the assembly line )
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Old 01-21-2018, 07:24 PM   #44
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DIN rail terminal blocks are $22 for 100 at Automation Direct, they're probably cheaper than Wago lever nuts. For a 42 position panel, you could outfit the can with DIN rail, terminal blocks, and a ground block for what $25. You'll save some time not having to deal with a big tangle of wire nuts, and future maintenance will be a breeze.

With romex, not having to pull the bare ground into the panel makes things less accident prone in many situations.
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Old 01-24-2018, 01:30 PM   #45
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Don't get me wrong, I lust for super neat panels, but even that for me would be too much. As far as safety, I am not sure that it is any safer to try to run a new circuit in a JB with 48 x 2 exposed terminal blocks or in the panel directly. While I agree that it would be easier to troubleshoot compared to a bunch of marrette connectors, I think putting that wire into where there a bunch of connectors would be less of a hazard then open terminals.

Cheers

John
For safety like I said some facilities big deal opening a panel.
The ark flash potential has got to be way less on a 20 or 30 A branch circuit VS a 225 A panelboard.
Drilling into a can vs panel, I would say again the can is safer.
Can't walk away from an open panel.
A open panel needs to have access closed off or barricaded.
A can cover missing in the ceiling only accessible from a ladder is different.

I'm not suggesting this on every rinky dink panel.
But if you working somewhere that has 100's to 1000's of panels.
Many times grouped along. Not always in an electric room.
Sometimes in kitchens, service corridors, even public areas.
Other times they on in 800 amp or more panel banks.
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Old 01-24-2018, 06:48 PM   #46
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When i was a noob i used to try and make my panels look like the ones in the trade rags

Now i don't even have time to read those magazines......~CS~
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