Weiland, Jeff on thu 31 jan 08
I was given a 208 volt - 60 amp Crusader kiln. I want to use it in my
studio at home but am sure it is 240 volts. What are my options? I was
told to use #6 copper to the switch box. I need to get a 60 amp
plug/cord unless I hook it up direct. If I run it on the 240 volts, what
happens? If I change out all the elements to 240 volts, will the
controls handle it? Does that change the amperage?
Jeff Weiland
Greenfield-Central High School
810 North Broadway
Greenfield, Indiana 46140
317-462-9211
jweiland@gcsc.k12.in.us
Terrance Lazaroff on thu 31 jan 08
My advice is to contact an electrician. This is important stuff and if you
don't know what you are doing you may end up burning down your home.
Check with an electrician about an estimate. They may charge a few dollars
for the visit but it will be worth it in the end.
Terrance
Ben Shelton on thu 31 jan 08
ok
Kilns should make a desired amount of heat from the input voltage going
through elements that have a fixed resistance to the electrical flow.
current(amps)=voltage/resistamce
or I=V/R
if we have 60 amps and 208 volts we need to know the resistance
R=V/I 208/60=3.46666
So, lets try and use 240 volts with this kiln and find out what the current
flow will be.
I=240/3.46666
I=69.23 amps
That is nearly a 10 amp increase in current draw.
It is possible to supply 70 amps of current to an appliance but the
appliance may not be rated to handle it and it may burn up.
The BEST solution is to replace the elements with those wound for 240volts.
Next would be to use a matching transformer that will probably cost as much
as the new elements.
DO NOT run a 208 kiln on 240.
Ben
Pfeiffer Fire Arts on thu 31 jan 08
How do the infinity switches work? If they work by reducing the current,
i.e. adding resistance, then this could work if not put on max. If they just
switch on and off not so good, but the point is the controls do in some way
limit the current or the elements would be on max all the time.
Dan & Laurel
>>>That is nearly a 10 amp increase in current draw.
It is possible to supply 70 amps of current to an appliance but the
appliance may not be rated to handle it and it may burn up.>>>
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