On Mar 20, 2014, at 4:52 PM, Jay Hennigan <j...@west.net> wrote: > On 3/18/14 3:54 PM, George Herbert wrote: > >> This sort of thing is usually an adapter, a little cylinder with a L6-20R >> on one end and a L6-30P on the other, since the loads are safe. Either >> that, or a short jumper cable wired the same way. > > The loads aren't safe. You will have a 30-amp circuit breaker feeding > the L6-30R socket. The load and its wiring are only rated for 20 amps > so if there's an overload you will exceed the ampacity of the wiring > downstream of the L6-20P and the L6-20P itself. > > Option 1: Change the breaker to 20A and change the receptacle to L6-20R. > > Option 2: Buy a 30-amp rated PDU equipped with L6-30P plug.
Option 3: Put a 20A breaker or fuses inline in the Adapter. Owen
