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#190353 - 11/12/09 05:16 PM 200amp disconect  
watersparkfalls  Offline
Member
Joined: Mar 2005
Posts: 216
Washington...Not DC
I have a 400Amp service with 2 200Amp disconects. Can I put doouble barel lugs on 1 disconect to feed 1 200Amp panel and feed 100Amp back fed breaker.
Thanks H2O


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#190354 - 11/12/09 05:47 PM Re: 200amp disconect [Re: watersparkfalls]  
George Little  Offline
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Joined: Jan 2004
Posts: 1,489
Michigan USA
My answer would be yes assuming your load is appropriate. Assuming also you are not overloading the 200a. overcurrent device and the 100a breaker is secured in the panel by a Listed clip.


George Little

#190355 - 11/12/09 07:12 PM Re: 200amp disconect [Re: George Little]  
renosteinke  Offline
Cat Servant
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Joined: Jan 2005
Posts: 5,316
Blue Collar Country
The only joker in the deck is that the wire to the 100 amp panel should be sized for 200 amps, unless you can apply tap rules to your circumstance. Otherwise, there might be a problem fitting the wire into the breaker.


#190357 - 11/12/09 08:16 PM Re: 200amp disconect [Re: renosteinke]  
George Little  Offline
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Joined: Jan 2004
Posts: 1,489
Michigan USA
Reno- If I'm reading his post correctly, this would be a tap to a 200a Service switch. Since he is on the load side of fusing, we are talking feeder. In his case there are no actual feeder conductor, only double barrel lugs. This happens sometimes. Since he is terminating in a 100a overcurrent device he could use 100a. wire. The code reference could be 240.21(B)(1). There is no way he could overload the 100a. conductors since there protected due to the tap limitation mentioned above.

Last edited by George Little; 11/12/09 08:17 PM. Reason: Big fingers

George Little

#190367 - 11/13/09 03:12 AM Re: 200amp disconect [Re: George Little]  
watersparkfalls  Offline
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Joined: Mar 2005
Posts: 216
Washington...Not DC
thanks guys.
H2o


#190368 - 11/13/09 03:38 AM Re: 200amp disconect [Re: watersparkfalls]  
gfretwell  Offline


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Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
I think Reno may be referring to the raceway requirements and 25' length restrictions for taps. The ampacity part is OK if this is a legal tap.


Greg Fretwell

#190369 - 11/13/09 12:14 PM Re: 200amp disconect [Re: gfretwell]  
renosteinke  Offline
Cat Servant
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Joined: Jan 2005
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Blue Collar Country
Thank you, Greg.



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