Industrial Control Panels/Motor Control Centers --> 409/430 VIII

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gappvembe

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Dowagiac, MI
tom baker said:
We can also make our own control panel as long as all the parts are UL listed and its inspected.
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And how might you get away with this?

Ultimately, it doesn't matter. My supervisor says whatever it takes to get the job done. Cost isn't that much of a concern to him. It's just, I've had all this schooling and experience doing exactly this, yet with out some kind of reprimanded approval with a sticker, I'm not supposed to touch it. It's almost like a little house. A main breaker. Switches that may or may not control lights. Switches which really control relays/coil, which control a motor. In this case that is all that is happening. I've done instances with PLCs and all the inputs and outputs on those machines. Those aren't pretty.
 
tom baker

tom baker

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Location
Bremerton, Washington
gappvembe said:
And how might you get away with this?

.
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Its allowed in our state electrical rules if permitted and inspected. Keep in mind some control components are not listed, they are recognized, shown by a backwards UR. Its a subtle but critical difference, as recognized components are only allowed where their is an overall listing on the product.
If you are going to make your own control panel, get a copy UL508A or NFPA 79, and follow the standard, just as you follow the NEC.
 
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gappvembe

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