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05-10-2009, 08:38 PM
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#1
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ET Road Warrior
Join Date: Feb 2009
Location: Long Island, N.Y.
Posts: 27,605
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12 volt lighting transformers
I am looking for outside and inside 12v. lighting transformers of at least 1000 watts. Anyone know of a good place to shop?? Thanks
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05-10-2009, 08:41 PM
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#2
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Wire Ninja
Join Date: Jan 2007
Location: Beautiful Cumberland Valley, in PA
Posts: 16,794
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For some of the more stout 12V systems, I've just used the secondary of a buck-boost transformer. Seems I can get them quicker than the bigger regular LV lighting transformers. Overcurrent protection can be a little bit of a puzzle, but I've used an SSU for that.
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05-10-2009, 08:41 PM
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#3
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Senior Member
Join Date: Mar 2007
Location: Leesburg, VA
Posts: 20,912
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Soa, Heviduty, Sq D and your local supply house.
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05-10-2009, 11:19 PM
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#4
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Senior Member
Join Date: Sep 2007
Location: Delmarva, USA
Posts: 2,084
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That's over 80 Amps there. You will have to install a rather large secondary conductor for such a monstrocity. 
Are you planning to construct a distribution panel for the loads? Something with proper overcurrent protection?
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Life is uncertain -- eat dessert first! 
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05-10-2009, 11:28 PM
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#5
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Wire Ninja
Join Date: Jan 2007
Location: Beautiful Cumberland Valley, in PA
Posts: 16,794
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I know some of the more ellaborate outdoor installations will use a breaker panel, wired for 12 volts. Get on the AOLP website to see some stuff that'll knock your socks off. http://aolponline.org/
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One reason not to give DIY advice:
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05-11-2009, 02:28 AM
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#6
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ET Road Warrior
Join Date: Feb 2009
Location: Long Island, N.Y.
Posts: 27,605
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I found this transformer.. it takes (4) 300 watt circuits and has voltage drop table for long runs (up to 22 volts) http://www.hadco.com/Hadco/Public/Pr...?pid=374&Id=24
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05-11-2009, 03:37 AM
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#7
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Registered Member
Join Date: Nov 2007
Posts: 2,575
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Quote:
Originally Posted by MDShunk
I know some of the more ellaborate outdoor installations will use a breaker panel, wired for 12 volts. Get on the AOLP website to see some stuff that'll knock your socks off. http://aolponline.org/ |
Not for nothing, but when the scope gets this intense, wouldn't a line of line voltage fixtures be more practical?
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05-11-2009, 08:05 PM
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#8
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Member
Join Date: May 2009
Location: Arizona, USA
Posts: 96
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Article 411.3
Lighting 'systems' operating at 30v or less shall be listed. 411.2 also.
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Frank, Arizona,USA
It's what you learn after you know it all that counts
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05-11-2009, 08:53 PM
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#9
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Wire Ninja
Join Date: Jan 2007
Location: Beautiful Cumberland Valley, in PA
Posts: 16,794
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I think all this "listed lighting system" jazz was a spectacular lobbying effort on the part of some manufacturers at some point in time. 12 volts is 12 volts, no matter who's transformer it comes from.
__________________
One reason not to give DIY advice:
Catch a man a fish and you can sell it to him.
Teach a man to fish and you’ve ruined a good business opportunity.
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05-11-2009, 11:34 PM
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#10
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Member
Join Date: May 2009
Location: Arizona, USA
Posts: 96
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Quote:
Originally Posted by MDShunk
I think all this "listed lighting system" jazz was a spectacular lobbying effort on the part of some manufacturers at some point in time. 12 volts is 12 volts, no matter who's transformer it comes from.
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Unless your in a court of law!
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Frank, Arizona,USA
It's what you learn after you know it all that counts
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