how many 14-2 per a 4"(w)*4"(l)*2"(D) box?

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Old 12-26-03, 02:12 PM
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how many 14-2 per a 4"(w)*4"(l)*2"(D) box?

Thanks.. I searched and couldnt find the calculation
 
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Old 12-26-03, 04:27 PM
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The box you describe is not a standard box. If you meant a four inch square by 2&1/8" deep box it has a nominal internal volume of 30.3 cubic inches. Since each number #14 AWG conductor needs a 2 cubic inch space it can hold 15 #14 AWG conductors. If the clamps are external and there are no devices or hardware in the box it can hold seven 14/2 w/ground cables. All of the equipment grounding conductors only count as one conductor.
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Tom
 
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Old 12-26-03, 04:43 PM
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THANKS. it must be 2 1/8" . just took a quick measurement!
 
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Old 12-26-03, 07:29 PM
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FYI: some of the plastic boxes also list the wire capacity imprinted on the inside, unless you look closely you can miss it.
 
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