Hello, im installing some high bay l.e.d ufo's with 0-10v dimming leads and id like to dim them wirelessly through a lutron powpak. The powpak is rated for an 8 amp load and my lights will pull 9 amps. Would there be an issue with my 0-10v dimming capabilities using the powpak to control a lighting contactor to pass the load through?
Wireless 0-10v dimming
- Thread starter Apjackson
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hillbilly1
Senior Member
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- North Georgia mountains
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- Owner/electrical contractor
It would work just fine, unlike household dimmers, the dimming control is through the 0-10 V, not the power line. You can even have the fixtures on different circuits.
hillbilly1
Senior Member
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- North Georgia mountains
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- Owner/electrical contractor
I haven’t looked at it, but it does have two wires for dimming out of it? You just loop every fixture with the same cable.
hillbilly1
Senior Member
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- North Georgia mountains
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- Owner/electrical contractor
Is this what you are using?
It says 60 ma control max, which they usually are conservative. Getting the actual ma per fixture out of the manufacturer is like pulling teeth, and when you do get it, it’s usually a higher than the actual number by a whole lot.
It says 60 ma control max, which they usually are conservative. Getting the actual ma per fixture out of the manufacturer is like pulling teeth, and when you do get it, it’s usually a higher than the actual number by a whole lot.
Tulsa Electrician
Senior Member
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- Tulsa
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- Electrician
I had just installed some of those they worked pretty well.
Take note of the 30' pack to wireless controller.
Also make sure there in a line of site installation.
If you mount to a box you can get a adapter plate to mount to box.
Take note of the 30' pack to wireless controller.
Also make sure there in a line of site installation.
If you mount to a box you can get a adapter plate to mount to box.
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hillbilly1
Senior Member
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- North Georgia mountains
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I had one fixture manufacturer’s engineer tell me that it is one milliamp per fixture, but when I tested it, it was far less. If I remember correctly, 100 drivers were only 20 milliamp in actual draw.
Yes that is essentially what im looking at, im not worried about the milliamps per fixture im worried about the full load of 9 amps. That powpak is not rated for 9 amps and lutron is saying i cant use their powpak to operate a lighting contactor. Most controllers are capable of dimming far more then they are capable of switching so milliamps isnt a concern of mine.
curt swartz
Electrical Contractor - San Jose, CA
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- San Jose, CA
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Each fixture pulls 9 amps? Or all fixtures combined pull 9 amps? If its all fixtures combined just use multiple PowPacks.
Its common to have controls for each fixture.
synchro
Senior Member
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- Chicago, IL
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- EE
The spec says:
" Switch rating of 8 A. Rated for resistive or capacitive loads as defined by IEC/EN 60669-2-1"
So apparently it's not rated for an inductive load like the coil of a contactor, even though the current drawn would be very low.
As Curt posted above, you would need to use a couple of PowPak's to distribute the load.
It's likely that a solid state contactor would work because they have a high input impedance that is not inductive. But it would need to be enclosed and UL listed. And so splitting the loads between more PowPak's is a better alternative.
Seems very wasteful, there has to be better alternatives. Ill run dimming leads down the wall to a hard wired switch before i buy 2 powpaks.
hillbilly1
Senior Member
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- North Georgia mountains
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- Owner/electrical contractor
As mentioned by others, a RIB relay would work, they even have 20 amp rated contacts in multi pole applications, so a contactor would not even be needed. And since they have their own enclosure that nipple mounts straight to the j-box, they can be located anywhere.
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