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Running 8/3 wire from main breaker to subpanel: circuit breaker question

Running 8/3 wire from main breaker to subpanel: circuit breaker question

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  #1  
Old 07-06-04, 09:24 AM
jeffv2718
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Running 8/3 wire from main breaker to subpanel: circuit breaker question

I'm in the process of buying a circuit breaker for my older (18 yrs?) Cutler Hammer loadcenter to run a new 240V, 40/45 amp line to a subpanel. I know I have to use 3 wire plus ground romex for this, and seems that 8 AWG will do. My question is about the circuit breaker: can I use a 2-pole breaker ($15, CH240) or do I need a three-pole ($50, CH340)? The lables on my loadcenter don't make it clear, and say only I need a type CH or CH3 breaker.

Thanks for your help!
- Jeff
 
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  #2  
Old 07-06-04, 09:30 AM
mgb
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Join Date: Jun 2004
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2 pole. A 3 pole is for a 3 phase system.
 
  #3  
Old 07-06-04, 09:39 AM
jeffv2718
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Thanks

Saved me $35. Thanks!
 
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