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#### baseballbuzz

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Discussion Starter · ·
How many 10 gauge wires can go into a standard size outdoor single receptacle box? I was trying to put 3 in and 6 out.

#### Speedy Petey

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There is NO "standard" size. Exactly what box are you using.

WHY are you using #10, and why are there so many?

#### baseballbuzz

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Discussion Starter · ·
using 10 gauge for a run of 350 ft. with 5 receptacles. Using a carlon fs box E979DFN.

#### rjniles

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##### A "Handy Husband"
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using 10 gauge for a run of 350 ft. with 5 receptacles. Using a carlon fs box E979DFN.
That box is not large enough, it is 19 Cu in.

For 9 #6 you need a minimum of 22.5 cu in plus 5 cu in more if the box has a receptacle.

#### baseballbuzz

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Discussion Starter · ·
what size box would i need for 9 10-gauge wires plus receptacle?

#### rjniles

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what size box would i need for 9 10-gauge wires plus receptacle?

22.5 plus 5 is 27.5 cu in.

You need 2.5 cu in for each #10 plus the receptacle counts as 2 more conductors.

baseballbuzz

#### baseballbuzz

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Discussion Starter · ·
So, is this correct for box fill calculations?

Each 10 ga wire counts as one or 2.5 cubic inches
Multiple ground wires only count as one or 2.5 cubic inches
Each single outlet counts as two or 5.0 cubic inches

#### mm11

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##### JW
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428 Posts
350' is a loooong run- your wire is sized too small, even for a 5 amp load

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