No, I don’t think so.  Some are.

 

You want to avoid the ones that won’t switch off commercial power until it 
drops below something like 80 V.  Those are fine for boats and RVs to switch 
between shore power and an inverter, because the commercial power is either 
there or it isn’t.  But at our tower sites, it seems like at least half of 
power failures are partial voltage, we see anything from 60 to 90 volts, and 
most electronics won’t run on that.  Nothing pisses me off like driving to a 
tower site that’s down, and finding 4 days worth of fully charged batteries for 
the inverter, but the ATS is delivering 85 volts to the loads thinking that 
should be just fine.

 

 

From: AF <af-boun...@af.afmug.com> On Behalf Of Adam Moffett
Sent: Thursday, September 10, 2020 2:31 PM
To: af@af.afmug.com
Subject: Re: [AFMUG] Looking for a 20A Auto Transfer Outdoor switch/plug

 

I wouldn't have thought of that.

Are all transfer switches just relays with an ac powered coil?

 

On 9/10/2020 2:01 PM, ch...@wbmfg.com <mailto:ch...@wbmfg.com>  wrote:

https://www.amazon.com/Enclosed-Pre-Wired-Relay-300VAC-DPDT/dp/B008HOQZ8C

$36.50  Already in a box.

 

https://www.amazon.com/TWTADE-JQX-62F-2Z-Voltage-Electronmagnetic-Relay/dp/B07FCJFGL9/ref=sr_1_19?dchild=1
 
<https://www.amazon.com/TWTADE-JQX-62F-2Z-Voltage-Electronmagnetic-Relay/dp/B07FCJFGL9/ref=sr_1_19?dchild=1&keywords=120v+relay&qid=1599760852&sr=8-19>
 &keywords=120v+relay&qid=1599760852&sr=8-19

 

$29.36

 

Or a pair of simple contactors wired up as a DPDT.

 

 

From: Sterling Jacobson 

Sent: Thursday, September 10, 2020 11:47 AM

To: AnimalFarm Microwave Users Group 

Subject: Re: [AFMUG] Looking for a 20A Auto Transfer Outdoor switch/plug

 

Yeah, yeah.

 

I guess next best thing is to add an outdoor rated reverse twistlock 20A plug 
to the side of the cabinet and use an internal solution for the automatic 
transfer part.

 

I’ll go start perusing the RV/Yachting pages for that.

 

From: AF  <mailto:af-boun...@af.afmug.com> <af-boun...@af.afmug.com> On Behalf 
Of Chuck McCown
Sent: Thursday, September 10, 2020 11:37 AM
To: AnimalFarm Microwave Users Group  <mailto:af@af.afmug.com> <af@af.afmug.com>
Subject: Re: [AFMUG] Looking for a 20A Auto Transfer Outdoor switch/plug

 

Not sure you will find an auto transfer.  But a $10 contractor will do the job,

Sent from my iPhone






On Sep 10, 2020, at 11:18 AM, Sterling Jacobson <sterl...@avative.net 
<mailto:sterl...@avative.net> > wrote:

 

I should have just asked this here first instead of the Facebook groups.

Sometimes people are just so lazy it makes me doubt humanity.

All I got out of Facebook so far with this questions is idiots mansplaining 
hack about things I already know.

 

Anywho:

 

If you know of a product that exists that fits the bill, please point me in the 
right direction because I’m having a hell of a time finding it.

 

Basically this, but AUTO TRANSFER instead of manual:

 

http://www.steadypower.com/products.php?product=Reliance-CSR201L-Transfer-Switch-%2820A%29

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