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    tableclocks's Avatar
    tableclocks Posts: 432, Reputation: 2
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    #1

    Mar 27, 2008, 07:38 PM
    new 20 kw furnace
    follow up about my 20 kw furnace... it has 2... 240 60 amp brakers built in.. 60 amp on each line... 60 x 4... 240... well I know it only pullys about 60 amps total... di I have to use 2.. 240 60 amp brakers in my 200 amp service panel?. 6/3 wg wire?seens like a lot of protection for a 20 kw furnace... thanks for your help
    sanjoychakraborty's Avatar
    sanjoychakraborty Posts: 1, Reputation: 1
    New Member
    		  
    #2

    Mar 27, 2008, 09:51 PM
    Sir,
    Please send the following question directly to my E-Mail ID([email protected]).

    1> The instrument is required 230VAC single phase Supply Line ( Phase, Neutral ) and Earthing. But we are getting the nutral line from different source. The neutral line is separated with single phase power line.How can used the supply line to the Instrument. Please send the details with circuit diagram and details spares.

    2> How can I used three phase supply line with the Instrument. Requirement power is 230VAC.

    Please send all details with circuit diagram.

    Sanjoy Chakraborty
    Credendovidis's Avatar
    Credendovidis Posts: 1,593, Reputation: 66
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    #3

    Mar 28, 2008, 05:07 AM
    2... 240... 60 amp breakers
    If you have 4 circuits of 60 Amps you have 4 breakers of 60 amps = total of 240 Amps.
    Than what does the 2 indicates?
    Double circuits of 4 circuits of 60 Amps = 2 x 240 Amps ? Why?
    If not : 2 x what than? It makes no sense to me!
    .
    And as stated before : 60 Amps means 4" wire. Phase and neutral. Don't forget earth.
    .
    And what do you still want to know, additional to what you were told earlier?
    .
    ;)
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