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Message: <blockquote data-quote="Rob Timmerman" data-source="post: 137626" data-attributes="member: 172">Re: Sound & Stage PowerI've not seen any distros built around L14-30 in my travels.  Again, there is a fair amount of regional standardization in our industry, and every region tends to pick a connector and go with it.Here's a list of the connectors that I'm aware of that are viable for temporary power distribution, along with some notes on use.  Wire sizes noted assume that the neutral is counted as a current-carrying conductor, which is required if nonlinear loads (e.g. most switch-mode amplifiers) are on those circuits.  In most cases, if your loads are all linear, you can drop down a size.In order of available power:Powercon (single 20A circuit) (12/3 wire)NEMA 5-20 (standard Edison) (12/3 wire)NEMA L5-20 (twistlock equivalent to Edison) (12/3 wire)NEMA L5-30 (30A twistlock, occasionally used for larger power amplifiers) (10/3 wire)NEMA L14-20 (20A split-phase twistlock, can be split into 2 20A 120V circuits with no additional OCPD.  Occasionally found on larger gas generators) (12/4 wire)NEMA L21-20 (20A 3-phase twistlock, can be split into 3 20A 120V circuits with no additional OCPD.  Requires 3-phase feed) (10/5 wire) (12/5 with linear loads)NEMA L14-30 (30A split-phase twistlock.  Can be split into 4 15A 120V circuits with a sub distro.  Occasionally found on larger gas generators) (8/4 wire) (10/4 with linear loads)NEMA L21-30 (30A 3-phase twistlock.  Can be split into 6 15A 120V circuits with a sub distro. Requires 3-phase feed ) (6/5 wire) (8/5 with linear loads)California Standard 50A split phase (50A split-phase twistlock.  Can be split into 2 20A and 4 15A circuits with a sub distro.  Commonly found on small diesel generators and on construction sites) (4/4 wire) (6/4 with linear loads)CEE-Form / Pin and Sleeve connectors (60A and 100A split-phase and 3-phase connectors.  Generally used on the inputs of smaller distros.)Cam-lock (individual feeder splice connectors, up 400A.  Widely used on the inputs to distros)Beyond this list, there are also the range plugs found in clubs (typically NEMA 14-50), the NEMA L15-20 plugs found on some motors and motor distros, and the NEMA L6-20 and L6-30 plugs found on larger moving lights and projectors.For the OP's case, in the absence of any other factors (such as cross-rentability), I'd probably go with L21-20 if 3-phase was always available, or CS-50 if only split-phase were available.  In the L21-20 case, a single run per line array hang is probably sufficient (but give yourself enough extra outputs on the distro to double up if needed), and you don't need breakers on your breakout.  In the CS50 case, you'll need a sub-distro at each location.</blockquote>

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