From: Denny Esterline <desterline@gmail.com>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Thu, 5 Aug 2021 13:46:54 -0700
Subject: Re: [EE] Latching relay ratings
Thread-Topic: [EE] Latching relay ratings
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It also seems reasonable to assume that any current level the relay is
rated for will not lead to adverse behavior of the latching mechanism,

-Denny

On Thu, Aug 5, 2021 at 12:15 PM Sean Breheny <shb7@cornell.edu> wrote:

> Correct - unless we're talking thousands of amps, I don't think it will
> influence the latching mechanism.
>
> On Thu, Aug 5, 2021, 11:51 AM Bob Blick <bobblick@outlook.com wrote:
>
> > I gather from the discussion that nobody thinks electromagnetism from a
> > strong DC current through the relay will influence the relay's latching
> > response?
> > Thanks, Bob
> >
> > ________________________________________
> > From: Bob Blick
> > Sent: Wednesday, August 4, 2021 3:32 PM
> > To: Microcontroller discussion list - Public.
> > Subject: [EE] Latching relay ratings
> >
> > I'm helping a friend out with his camper's auxiliary 12 volt power, and
> > I'd like to set up an automatic low battery disconnect. His solar
> > controller has a low battery voltage dry contact output but it's rated
> for
> > only 0.5A. I know I could just connect a 40 Amp automotive relay to tha=
t,
> > but then there'd be a constant 120 milliamp drain until the battery
> > disconnected. So I am thinking of using a high current latching relay a=
nd
> > some logic. But all the affordable latching relays, such as this 120 Am=
p
> > Omron G9TB-K1ATW-E DC12  are rated for AC only. I'm assuming it's becau=
se
> > high DC current could cause the relay to unlatch due to electromagnetis=
m,
> > and running 12VDC at 30 Amps through the 277VAC 120A contacts isn't
> really
> > going to be a problem. Or am I wrong?
> >
> > Bob
> >
> > --
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