[ICOM] RE: PW-1 220 VAC US wiring?

[Alan Riley]

I think Doug is correct here.

     4-wire = hot-hot-neutral-ground.
     3-wire = hot-hot-ground.

The 4-wire is required if the appliance or other device 
requires both 240V and 120V.  The 120V is developed
across one hot and the neutral with the 240V being
developed across the two hots.  If the device does not
require 120V, then a 3-wire configuration is used.  A
ground is required in either case.

Alan,
KD5R

 
----- Original Message ----- 
From: "Bob Kulow" <kulow at epix.net>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Sunday, July 20, 2008 2:21 PM
Subject: RE: [ICOM] RE: PW-1 220 VAC US wiring?


> Doug, I think you made a typo - 4 wire for 240 VAC and 3
> wire for 120 VAC.
> 
> 73
> Bob WA2UEH
> 
>> Here we go again.  Be sure of your facts before making a
>> statement.  A
>> four wire plug can be 240 vac single phase ... hot, hot,
>> neutral and
>> ground.  You need a four wire plug if your amp uses 120
>> vac ... one hot
>> and neutral, otherwise you only need a three wire plug.
>> 
>> Doug
> 
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