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Re: [Shop-talk] Wiring a 230v 50hz heater for U.S. 220v 60hz supply

To: Scott Hall <scott.hall.personal@gmail.com> 2903e8d5c8f:6.0.425,18.0.572,17.11.62.513.0000000 definitions=2022-01-14_01:2022-01-14_01,2020-02-14_11,2021-12-02_01 signatures=0 clxscore=1011 phishscore=0 suspectscore=0 mlxlogscore=999 mlxscore=0 adultscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210220002
Subject: Re: [Shop-talk] Wiring a 230v 50hz heater for U.S. 220v 60hz supply
From: Pat Horne <patintexas@icloud.com>
Date: Fri, 21 Oct 2022 19:42:18 -0500
Cc: Shop-talk@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: shop-talk@autox.team.net
References: <CAK73_u6W82iHGWSs1B0kR0Mo5hPsmHnL+kk6cd5Dc6eYbm8_0w@mail.gmail.com>
Scott, generally converting from 50hz to 60hz is not a problem if the device 
doesnâ??t rely on the line frequency for timing. The other thing is that it 
probably hasnâ??t been submitted for US certification. 

The only time Iâ??ve seen any problem was when converting a 60hz audio 
amplifier to 50hz, there was a bit of hum but other than that, it worked fine. 

Peace,
Pat

Pat Horne 
We support Habitat for Humanity


On Oct 21, 2022, at 7:34 PM, Scott Hall <scott.hall.personal@gmail.com> wrote:


Guys,

I'm in France right now. I'd like to buy what amounts to a hot plate here. The 
company that makes these sells them all over the world. In France (where the 
manufacturer is located) they're about $300. In the U.S., they're about $900. A 
huge chunk of that is just how common they are in France and uncommon they are 
in the U.S.--at home they're sold through a partner licensee.

Anyway, the one I'd buy in France has a French plug on it for 230v 50hz supply. 
The specialty retailer offering it says I can replace the plug with a U.S. 220v 
plug and it'll work just fine. Either cut it and wire on a dryer plug or 
unscrew the plug in the unit and install a dryer plug. This is also coming from 
a sales guy.

The electronics are are literally an electric resistance coil sunk in an iron 
plate and a thermostat dial, and a light to indicate when it's at temp. I'm 
trying to come up with his any of those would change with the 10hz frequency 
difference.

The U.S. version is at least cosmetically identical, and literally the only 
parts aside from the coil are the thermostat dial and light. The function is 
the shape of the iron plate--the rest is just a heating blanket. I wouldn't 
want to switch it to 120v U.S.--it would take forever to get up to temp. and to 
recover during use.

Does it seem reasonable that I can just swap out the cord? Any thoughts?

Thanks fellas.

Scott
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