I don't think it really matters, it's forced air ... put it at any angle?
On Thu, Feb 16, 2017 at 5:11 PM, Bill Prince <[email protected]> wrote:
>
> Just put one of these switches on a DIN rail, and I noticed something
> curious. All the photos I've seen show the switch with the DC power
> terminals at the top. This makes some sense when you see that the vents in
> the side of the case are them at the top, which makes a natural path for
> hot air to escape.
>
> However, it does not make sense when you also notice that this puts the
> fan at the bottom. Well, not at first, until you also notice that the fan
> (at the bottom) is an exhaust fan, and not an intake fan. So the vents at
> the top, let hot air out, but the fan at the bottom is pulling air in from
> the top? Huh? Shouldn't I be putting the DC power terminals at the bottom,
> so that the exhaust fan can actually exhaust up?
>
> The other issue is that the DIN rail clips are spring loaded, and just the
> cable weight seems to pull on the sprung clips, and I would think that
> you'd want the fixed clips on top (the ones that don't retract), and that
> to dismount, you would lift the unit, and rotate downward.
>
> Am I miss reading this?
>
>
> --
>
> bp
> <part15sbs{at}gmail{dot}com>
>
>
