Why can't i find a 32 amp version of this?
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URL: https://forum.speakerplans.com/forum_posts.asp?TID=77828
Printed Date: 26 March 2026 at 11:31pm
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Topic: Why can't i find a 32 amp version of this?
Posted By: discosucks
Subject: Why can't i find a 32 amp version of this?
Date Posted: 08 April 2013 at 8:42pm
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http://www.licht-produktiv.de/Showtec-Powersplit-1-CEE-16A" rel="nofollow - http://www.licht-produktiv.de/Showtec-Powersplit-1-CEE-16A I'm looking for 32 amp 3 phase splitter to single phases . Hopefully something as cheap as that haha
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Replies:
Posted By: James Tengo
Date Posted: 08 April 2013 at 9:07pm
| Not that cheap at all http://www.rubberbox.co.uk/on-the-shelf/small-boxes/RUB1852.php" rel="nofollow - Look here |
Posted By: KonanSS
Date Posted: 08 April 2013 at 9:12pm
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http://www.rubberbox.co.uk/on-the-shelf/index.php there's a few options here ------------- KSS - Devon based always wanting to learn more |
Posted By: ceharden
Date Posted: 08 April 2013 at 9:14pm
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That showtec one is a bit odd. Why split 3 phases to 5 outlets..... |
Posted By: all bass
Date Posted: 08 April 2013 at 9:26pm
They just take 1 of the phases for all 5 outlets.
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ceharden wrote:Posted By: Requiem
Date Posted: 08 April 2013 at 9:35pm
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Im also looking for one of these. as cheap as possible, 32 amp 3 phase in and as many 32 amp single phase out's as possible... 3 or more is good the with trip switches... ------------- www.requiem-soundsystem.com Custom Martin Audio WSX, USB & CSG Soundsystem based in Bristol |
Posted By: James Tengo
Date Posted: 08 April 2013 at 9:40pm
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Martin from Martin's Lights in Reading has a load of http://www.bigtidyup.blogspot.co.uk/2013/04/rubber-box-and-ses-metal-box-distros-in.html" rel="nofollow - distro for sale at the moment Edit - All under offer, so don't flood him with messages, he will update the post soon |
Posted By: LjudLahger
Date Posted: 08 April 2013 at 9:47pm
| What outlet do you use for 32A single phase? |
Posted By: dylan-penguinmedia
Date Posted: 08 April 2013 at 9:51pm
A blue 32a ceeform |
Posted By: LjudLahger
Date Posted: 08 April 2013 at 9:52pm
| Hmmm have only seen 16a of this one... |
Posted By: dylan-penguinmedia
Date Posted: 08 April 2013 at 9:53pm
They do 16a, 32, 63 and 125 as a single phase blue. |
Posted By: LjudLahger
Date Posted: 08 April 2013 at 9:54pm
Wow I have totally missed that! Sorry 
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Posted By: Peter Moller
Date Posted: 08 April 2013 at 10:14pm
The larger ones are often used in theatre and TV lighting stuff.... Otherwise it'd be difficult to power a 5KW Arri Fresnell :-) ------------- real phone no: +45 four zero six two four four nine eight ( using obvious anti phone spam encryption ) |
Posted By: discosucks
Date Posted: 08 April 2013 at 10:19pm
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Tell me this , can you make up a cable to split up the 3phase into single phases??? I have protection on my distro just want the option of being able to split up 3phase if a venue has it .
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Posted By: ceharden
Date Posted: 08 April 2013 at 10:47pm
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I know people who have made a 3 phase split cable. It's actually very difficult to make and for it to be safe. 3 bits of 6mm into one 32A ceeform doesn't go! |
Posted By: discosucks
Date Posted: 08 April 2013 at 11:01pm
| Well what about 32 amp 3 Phase to one single 32? |
Posted By: ceharden
Date Posted: 08 April 2013 at 11:03pm
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That you can do easily. |
Posted By: discosucks
Date Posted: 08 April 2013 at 11:11pm
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Ok sweet, i think i will get a sparks mate to do it for me . thanks lads !
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Posted By: MattStolton
Date Posted: 08 April 2013 at 11:20pm
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The hole point of three phase, is balance load over all three phases. Pulling 32A on just one, will load the neutral up. On fixed installations, not so much of a trouble, usually there are other services loaded on the other two to generate some form of balance. If you are on a generator things can get a little "stressed". Throw in some power factor, and windings in generator can get a little melty. Saying that I have 1. 1m long type SY 6mm^2 cable (the stuff with the clear outer, and a metal braid below. Green Yellow is earth at both ends, blue is neutral at both ends. In the 32A cee form outlet, L1 (brown) has only one place. In the 32A three phase inlet, I can put brown in any one of L1, L2 or L3, depending on which is the phase I wish to load (or the coolers are on L1, Lighting on L2, I will go L3?). As long as it is 6mm^2 (or more if length is causing voltage drop, or bundled, or running through insulation, etc), and the 32A three phase has a 32A breaker protecting the TPN+E 32A outlet, your hot to trot. I even have a sticker system, to show which phase is in use (R Y B / Br Black Grey/ L1 L2 L3) in the 32A TPN+E inlet. ------------- Matt Stolton - Technical Director (!!!) - http://www.wildingsound.co.uk" rel="nofollow - Wilding Sound Ltd "Sparkius metiretur vestra" - "Meter Your Mains" |
Posted By: levyte357-
Date Posted: 09 April 2013 at 12:28am
Was always told, Sound gear split over phases, is recipe for noise, and possibly even worse. ------------- Global Depopulation - Alive and Killing. |
Posted By: ceharden
Date Posted: 09 April 2013 at 12:31am
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Only if you're not careful. Generally, you make sure all the control is on one phase but then split the amps across all the phases. On large touring ampracks, three phase to the racks is the only sensible way to go. |
Posted By: levyte357-
Date Posted: 09 April 2013 at 1:16am
Lovely.. Have my "proper" 3PH-32A distro already, with 2x16A outputs per phase, and V/A meters. If I'm in venue with 3PH-63A, what do I need to legally use my distro? I'm guessing 3PH-63A -> 3PH 32A box, with 3PH63A In/3PH32 Out + 32A breaker per phase, and RCD? ------------- Global Depopulation - Alive and Killing. |
Posted By: Adam_Iron_Horse
Date Posted: 09 April 2013 at 1:19am
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Apologies for the Hi-jack but Our town hall has a 63A 3 phase feed and my mate is planning on doing stuff in there with his larger system. AS far as I'm aware this 3 phase feed was put in after the rest of the electrical stuff on a seperate feed. He's just bought a distro so he can take advantage of this feed, but I had it in my mind we would have to try and distribute the power across the 3 phases. Should we be worried about this or would be ok to take a 32A feed for the amp rack and then lights off another phase. (The hall really isn't large enough to warrant a 63A phase I wouldn't say only a 300 person limit) Cheers |
Posted By: James Tengo
Date Posted: 09 April 2013 at 10:11am
Almost. Something like http://www.rubberbox.co.uk/on-the-shelf/small-boxes/RUB1402.php" rel="nofollow - this is perfectly acceptable, you will note it does not have an RCD. Multiple inline RCD's can cause nuisance tripping, and having a fixed value and time RCD on a box like this would create inflexibility if you wanted to use it for a high earth leakage situation, such as a LED wall, or a LOT of switch mode amps. If something is physically isolated from the chance of someone touching it (such as a flown lighting truss) then it is accepted that RCD protection might not be required. Switchable RCD's are so you can have RCD protection whilst the rig is being assembled (and the chance of someone getting a belt is higher), but then once flown out to trim and 10m away from anyone then the risk is greatly reduced. In your arena where there are people interacting with your mics and equipment it's always covered by RCD's, where as an amp rack that is 32a 3ph fed and won't be touched during the gig might not have an RCD on it. Put simply - Earth leakage protection (RCD) is to protect people Over current protection (MCB) is to protect wiring from drawing too much current |
Posted By: James Tengo
Date Posted: 09 April 2013 at 10:24am
If you are on the national grid then don't worry too much about phase balancing, the only thing to watch out for is your neutral current. Due to the way we wire electrical systems the CSA of the wire for the neutral will only be the same CSA as a phase, yet due to harmonics the current you potentially could be putting down the neutral wire can, in certain situations, be higher than the current you are pulling from any one phase. This can lead to an overloaded neutral, and in old installations where you don't have a 4 pole breaker (or any over current breaker on the neutral) this can lead to problems. In your case as you will be drawing less than 32a per phase (depending on how much lighting you have, but certainly less than 32a on your feed for audio) from a 63a feed, the neutral will definitely be oversized enough not to worry about it. Don't forget that if only one supply in a 300 people hall that lighting can very quickly fill that 63a supply, and want more. It's not just about the audio Edit - Spelling |
Posted By: Adam_Iron_Horse
Date Posted: 09 April 2013 at 12:21pm
Cheers mate, put my mind at rest about all that. The promotion ain't huge and I don't think he has much in the way of lights but iv seen that hall lit with less than he has! |
Posted By: shagnasty
Date Posted: 09 April 2013 at 1:08pm
TBH, whilst theorectically possible, it can almost never happen. I single phase mode current on phase equals current on N, end of, no debate. Using 2 phases current on N should be less than the highest current on either phase, you would need a MASSIVE power factor issue to pull the current enough to get a substantial increase in I N above the Highest Phase current. The horror stories of people buring up the neutral on 3PNE supplies usually involve an Avo rack and a 3Phase to single phase converter...  |
Posted By: Ras Loud
Date Posted: 09 April 2013 at 3:29pm
Here you go: http://www.maaselectro.nl/MEOE1N.aspx?cat=0&pr=PVBH3F0B2&cp=0501010401" rel="nofollow - http://www.maaselectro.nl/MEOE1N.aspx?cat=0&pr=PVBH3F0B2&cp=0501010401 http://www.maaselectro.nl/MEOE1N.aspx?cat=0&pr=PVBH3F0B0&cp=0501010401" rel="nofollow - http://www.maaselectro.nl/MEOE1N.aspx?cat=0&pr=PVBH3F0B0&cp=0501010401 Not that cheap, but way cheaper than a 63A distro with 16A+32A outs at once. I am planning to use one of these on the 32A three phase link through of a standard 32A distro that has only 16A one phase outs. |