[SML] L21-30 power supply

[Dan Sheehan]

L21-30 is designated for 3-phase 5-wire   ( 3 hots, neutral, ground )

( see
 http://www.stayonline.com/detail.aspx?id=6767
for details)

Rated for 120/208 V    ( 120 each hot to neutral, 208 each hot-to-hot pair )

Should be fed from a 3-pole ganged 30A breaker,
which means that "Bento box" or similar can have
up to 30A for each *pair* of outlets.

*IF* your existing installation has the triple-30 breaker for this
L21-30 outlet,
AND is feeding other 120V loads from this panel (or you otherwise
verify 120V each hot to neutral),
looks to me(*) like you're good to go,
subject to the total current available to, and otherwise used by, this panel.

(*) = I am not a "qualified" electrician


On Sat, Feb 28, 2015 at 12:06 PM, Patrick McCreary via Stagecraft
<stagecraft at theatrical.net> wrote:
> Tim -
> It seems to me it will work just fine for you. Assuming the breakers that
> feed it in the panel are ganged, there should be no problem. Since it's
> being fed with 2-phase power, you'll get somewhere near 60 Amps out of it
> for use on stage (30 Amps per leg.) If you decide to extend it further away
> from the breaker panel, (and I wouldn't go more than 25 - 30 feet,) make
> sure you use the right gauge of Type SO (NOT SJ) cable and good (Hubbell)
> connectors, properly installed. Off the top of my head, 10/4 SO or SOW.
>
> Patrick

-- 
...Dan Sheehan
Fixer of things that break