You're right. I'm wrong.
120/120/Ground for 220v.
Neutral req'd if 120 is needed.
sorry temporary brain fart.
It's been a long week.
Vic
---------------
From: Gary Schafer <garyschafer@attbi.com>
To: V G <pmb1010@hotmail.com>
Subject: Re: [Amps] Source for 220V cords
To: <amps@contesting.com>
Date: Fri, 08 Mar 2002 12:03:26 -0500
Are you in the US?
I am not quite sure what you mean when you say "electrical code" for your
amp?
In the US, you should always have the ground connection for 120 or 220 volt
circuits. For a 220 volt circuit the neutral is only needed if there is to
be
current drawn on a 120 volt circuit in the amp. If current is only drawn on
the
220 volt circuit then no neutral line is needed. But there should never be
any
current carried on the ground lead.
If there is a requirement for a neutral line then you need 4 wires.
73
Gary K4FMX
V G wrote:
> Interesting...
> The Electrical code requirements for my
> remote panel for 220 for my amp, specifically
> has the neutral running to the panel. There
> is no ground. How in your instance would I
> connect this amplifier?
>
> Richard wrote:
>
> > >A window air conditioner cord is what you want. They have a molded
plug
> on
> > >them,
> > >although they are not usually all that long. Can be found in Home
Depot,
> > >Lows or
> > >probably most larger hardware stores.
> > >
> > >By the way I think that a 15 amp 220 plug has one blade turned 90
> degrees and
> > >the 20 amp plug has both blades 90 degrees from what a standard 120
volt
> plug
> > >would be.
> > >These are all 3 wire plugs. 2 hot and ground. No neutral connection.
I
> think
> > >that the SB220 will run without the neutral on 220 vac.
> > >
> > Do this and the chassis is not returned to mains neutral/gnd at the
> > breaker box.
> >
> > - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
> > www.vcnet.com/measures.
> > end
>
> I am not sure about the SB220 but the SB200 does not require a neutral
> connection
> on 220 volts. The fan is the only 120 volt item in the amp. It gets
> connected from
> one hot side to the center connection of the transformer primary. This
acts
> as an
> auto transformer to give 120 volts for the fan. The chassis ground still
> goes to
> the green wire (center pin) as it did with the 120 volt connection. No
> neutral
> connection is needed as there is no 120 volts as far as the line is
> concerned.
>
> 73
> Gary K4FMX
>
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