RBM wrote:
"jack" wrote in message
.. .
I am installing a 120v water heater in a 208/120 breaker box. Oddly, there
are no knockouts. Is that common in 208/120v?

I see three options; your advice on their legality would be appreciated.

1) I can cut a hole with a hole saw. Not a pleasant chore, but possible.
2) There is an outlet in a box just below the breaker box, connected to it
by a 1/2" conduit. I could connect my MC cable to the outlet box and run
the wires into the breaker box by the 1/2" conduit. I presume 1/2"
conduit can take two sets of #12 cable.
3) I can run my circuit to the outlet box and attach it to the wires that
feed the outlet. The outlet is only used for a radio and the water heater
is only 13a, so there should be plenty of capacity.


A 7/8" hole saw cuts you a 1/2" knockout. Drill a few for the future



What the other guy said about a hole punch (Greenlee?). Makes a much
nicer hole, and little or no debris inside, and no warping of the panel.

--
aem sends...