The issue Mark is talking about is that relay contact ratings are lower for DC
because AC arcs are self-extinguishing.
On the other hand, AC is RMS and the peak will be higher, so technically 24VAC
is around 34V peak on a sinewave. But I suspect you’d be fine.
From: AF <af-boun...@af.afmug.com> On Behalf Of Bill Prince
Sent: Monday, September 21, 2020 2:28 PM
To: af@af.afmug.com
Subject: Re: [AFMUG] Site Monitor Relay Question
He was talking about the output, so I assume we're talking about the voltage
that's being switched, not the input.
bp
<part15sbs{at}gmail{dot}com>
On 9/21/2020 12:25 PM, Mark Radabaugh wrote:
Are we talking about AC on the contacts?
Coil will only work with what it’s specified for (AC or DC).
Contacts will be fine with AC if they have a DC rating. The inverse isn’t
necessarily true.
Mark
On Sep 21, 2020, at 3:17 PM, Bill Prince <part15...@gmail.com
<mailto:part15...@gmail.com> > wrote:
But the reverse is generally not a problem. AC RMS current is much less
demanding than continuous DC current.
bp
<part15sbs{at}gmail{dot}com>
On 9/21/2020 9:40 AM, ch...@wbmfg.com <mailto:ch...@wbmfg.com> wrote:
I have had AC coil relays get stuck closed with putting DC on them.
From: TJ Trout
Sent: Monday, September 21, 2020 10:30 AM
To: AnimalFarm Microwave Users Group
Subject: Re: [AFMUG] Site Monitor Relay Question
it will work fine
On Mon, Sep 21, 2020 at 8:34 AM <ch...@wbmfg.com <mailto:ch...@wbmfg.com> >
wrote:
Yes, some do. Some will get magnitized if they are AC relays and you use DC
on them.
-----Original Message-----
From: Nate Burke
Sent: Monday, September 21, 2020 9:29 AM
To: Animal Farm
Subject: [AFMUG] Site Monitor Relay Question
The Specsheet for the 4 channel relay output unit says 1A@24VDC. I want
to control some HVAC Dampers that are running at 24VAC. The Relay
doesn't care if it's VAC or VDC right?
--
AF mailing list
AF@af.afmug.com <mailto:AF@af.afmug.com>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com <mailto:AF@af.afmug.com>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
_____
--
AF mailing list
AF@af.afmug.com <mailto:AF@af.afmug.com>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com <mailto:AF@af.afmug.com>
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
--
AF mailing list
AF@af.afmug.com
http://af.afmug.com/mailman/listinfo/af_af.afmug.com
