Lutron Dimmer Capacity question...

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emahler

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on a Lutron N-2000 (Nova 2000W) dimmer, what would be the maximum continuous (over 3 hr) load?

2000W or 1600W?

thanks
 
I would say unless Lutron says otherwise a 2000w dimmer should be able to carry 2000w continuously.
 
How about 1920W if it's on a 120V, 20A circuit?

carl (Already slapping myself around the block for getting into a residential conversation)
 
emahler said:
on a Lutron N-2000 (Nova 2000W) dimmer, what would be the maximum continuous (over 3 hr) load?

2000W or 1600W?

thanks
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I believe Lutron dimmers are rated 100% but I would try not to max it out.
 
I think you have to derate the wattage to 1600W if you are using 2 or more within the same gangable box set up. Too much additional heat generated from the aggregrate of all dimmers. :smile:
 
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coulter said:
How about 1920W if it's on a 120V, 20A circuit?
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How about an explanation?


coulter said:
carl (Already slapping myself around the block for getting into a residential conversation)
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Before you pummel yourself into obliviation...the dimmer could easily be in a commercial/retail application.
 
lpelectric said:
I think you have to derate the wattage to 1600W if you are using 2 or more within the same gangable box set up. Too much additional heat generated from the aggregrate of all dimmers. :smile:
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I don't believe you can gang 2000 watt nova dimmers. I believe they need their own box. Take a look at Celtic's link.
 
celtic said:
How about an explanation?

Before you pummel yourself into obliviation...the dimmer could easily be in a commercial/retail application.
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You're right it could be - had not thought of that. (Note to self: Cease pummeling until post completed)

210.20.A Size OCPD not less than 125% of continuous loads. 120V, 20A => 2400W X .8 = 1920W.

I had not thought about it being other than residential, and if not, it could be a 30A ckt (210.23.B) - in which case my answer wouldn't count.

But I'm thinking you already knew this.

Truthfully, my knowledge bank on commercial/retail lighting is not great.

(prepare to reinstate pummel)

carl
 
for the record...stop beating yourself Carl...

they are for a hotel's meeting rooms...i have 1 room that has 900W load, and 2 rooms that each have 1800W load. This is all existing and currently each load is controlled by a standard toggle.

Lutron says that they are rated for the full 2000A continuously. They are all installed individually. We just need to turn the existing 1G box into a 2G..I imagine it's simply a matter of changing the mudring.

I was just curious what others thought...
 
emahler said:
We just need to turn the existing 1G box into a 2G..I imagine it's simply a matter of changing the mudring.
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You might want to bench test that idea before letting the troops run amuck...
 
celtic said:
You might want to bench test that idea before letting the troops run amuck...
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yeah, right....it should be simple...easier than bending EMT...at least it's not repetitive:D
 
emahler said:
We just need to turn the existing 1G box into a 2G..I imagine it's simply a matter of changing the mudring.
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That's easy to do, as I have done it many times. Just don't get too ambitious removing the wall surface (I'm assuming drywall). You can cut out just enough to swap out the mud rings and still get the dimmer to cover everything.
 
By "bench test"...I mean at the actual bench ~ not butchering a wall to see if the guys can make a 1G into a 2G ~ to see that 2 N-2000 will fit w/o having to remove the fins....resulting in derated devices.
 
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