Thanks Dennis - I do plan on installing a new breaker on my A/C panel. I may
just cut the plug off and splice onto a new cable. I will try to ensure
short blade goes to Hot side.

GBM

"Dennis Lee" wrote in message
...
It really shouldn't matter - the wires will essentially go straight to a
transformer in the rectifier box, perhaps through a fuse and/or a switch.
The secondary side of the transformer will have some diodes to "rectify"
the
AC into DC. Part of their function ensures that the output polarity is
correct. There will usually be some capacitors there to smooth out the
output voltage, and maybe a regulator, if your fridge needs a narrow
voltage
range (like a computer does...).

But, if you want to be correct, the long blade goes to the "neutral" side
of
the mains, and the short blade goes to the "hot" side, per NEMA
guidelines.

It would be very advisable to install anything directly connected to the
AC
panel on a protected circuit, meaning on the downside of an existing or
new
breaker. Don't just wire to the main distribution busses - if you were to
get a short in the rectifier unit, or in the cable, you would likely have
no
overcurrent protection and you'd probably get a fire.

Good luck.
Dennis

"GBM" wrote in message
...
I purchased a rectifier that will provide 24V DC to our Refrig unit when
at
dock ( It has an internal switch that disconnects the battery connection
automatically when on A/C power)

This unit came with a two blade plug on the A/C inlet. In other words,
no
ground connection. The two blade plug has, as usual, one blade larger
than
the other.

I could install a new outlet and plug the unit in, or I could connect it
directly to the A/C panel.

Question: How do I determine which wire (plug blade) goes where when
connecting into the shore power system? Or does it matter?

GBM