wiring question

ed wallace

i am wiring a boiler with a taco 504 control and 5 circulaters how many 14 gauge wires can i run inside 1/2 inch emt

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Ken_8

The NEC says:

If you run THHN (typical) you can run 12, 14-GA conductors in 1/2" EMT.

If you run RH, you can only run 6.

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ed wallace

wiring

i didnt think you could run that many wires in 1/2 conduit

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Boston Boiler

Ed, you might want to confirm that number under MA code.

BB

Unknown

What about using

all the same gauge wires , but having some of them low voltage and some line voltage in the same conduit ? Is this forbidden ?

marc

sometimes

they are, if the wire is rated the same, with low voltage wiring that is harder to find, mard

Joe_51

If I'm correct you can have 9 current carying wires in a pipe before you have to derate circuits (ampacity) since small circ. pumps draw very little I'd guess you'd be all right with all 5 pumps in pipe.....you didn't give enough info on what your going with the wiring in the pipe.....so it's only a guess

Joe_51

If I'm correct you can have 9 current carying wires in a pipe before you have to derate circuits (ampacity) since small circ. pumps draw very little I'd guess you'd be all right with all 5 pumps in pipe.....you didn't give enough info on what your going with the wiring in the pipe.....so it's only a guess

ed wallace

wiring

I am in Ma. its 5 taco 007s contolled by a taco504 controller

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