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Old 09-11-2018, 08:41 AM
Victor Chiarizia Victor Chiarizia is offline
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bent mo;ly element

should i replace it or continue using it
i think i attached it. vic
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Old 09-11-2018, 08:52 AM
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Pete VanderLaan Pete VanderLaan is offline
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I would pull it since it appears to be grounding to the pot. If it was just bent, I'd leave it alone. It's a risk to both the pot and you.
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Old 09-11-2018, 09:26 AM
David Russell David Russell is offline
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Vic I have a similar element but it touches nothing. A little tricky to get out and back in though. It looks like that one might have a hard time fitting through the top slot.
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Old 09-11-2018, 10:12 AM
Victor Chiarizia Victor Chiarizia is offline
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it's touching the wall now for at least 6 months. think it bent from having a loose connection that fried the strap connector. out it goes along with the cracked pot. v
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Old 09-11-2018, 10:53 AM
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Pete VanderLaan Pete VanderLaan is offline
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that looks to be a 6/12 type element. They do warp. The 9/18's don't tend to.
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Old 09-12-2018, 09:40 AM
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Sky Campbell Sky Campbell is offline
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I have a quick question about 6/12 elements. I bought a bunch of these kanthal elements on a whim and would like confirmation of they will work if I chose to build with them. Sorry if it's a bone head question but not really sure how they spec these out. The only identifing markings on the boxes are as follows:



6/12
Lu 405
Le 355
a 50
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Old 09-12-2018, 11:02 AM
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Pete VanderLaan Pete VanderLaan is offline
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The element is a 2700 watt element that uses 16.3 volts in an ideal world.

With two banks of elements containing three elements each, the wattage would be 2700x 3 per bank= 8100 watts total per bank x(2) equals 16,200 watts. It would require a transformer with a secondary output of 16.3x3 volts or about 48 volts which is not going to be found in a surplus tranformer and would cost about $2,500 ( maybe more) to have built. It would need windings that produced 20KVA if you want it to run cool.

It would be possible to make up one bank of four elements that drew 64 Volts which ain't perfect but could get close to the secondary output of the third tap on a 480 Volt input transformer that had 240 volts being piped into it. Transformers can't discern a difference between 480 and 240 so you are essentially fooling it. A typical 480 transformer has three taps, two at 240 and one at 120 Volt. You want that 120 volt tap, cut in half by the input change and it becomes a 60 volt unit, close to what you need.

6/12's were generally a fairly fragile, difficult to ship element that do seem to wear out. The long ones, 450mm Le are an element I just gave up on shipping myself and I have them drop shipped. DHL does a really good job with them.

Steve switched out to the 9/18 element which was simply beefier. The 300 lb furnaces he built were of two types, the tall and the short and the height was necessary to cram the long 6/12's in there. The 9/18 really worked far better but the two use completely different transformers.

I think your elements, as installed described here would power a 130 lb pot max
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