RE: Re: What's the REAL story with LD11's and heat?

["Keith Doxey" <ukha@xxxxxxx>]

If they get too hot there is the risk of triac failure.

If they get VERY hot there is a risk of fire.

You can get 1/2 width blanks for consumer units, either fit 1/2 blank
between each module or fit 2 side by side with a full blank between them
and
the next pair.

The greater the load, the greater the heat, also most heat is generated at
50% brightness as the mains is being turned on at peak voltage.

Fitting fans is IMHO not a good idea. WHEN the fans fail the dimmers would
start to overheat and the first thing you would know would be dimmer
failure. You could of course add monitoring to the consumer unit and fan
but
that would cost much more than a slightly larger consumer unit to
accomodate
the modules with adequate ventilation.

Keith

-----Original Message-----
From: psghome2002 [mailto:psghome@xxxxxxx]
Sent: 15 February 2002 10:51
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: What's the REAL story with LD11's and heat?


Do you know if they have a thermal cut-off (or will they blow the
fuse if they get too hot?). Sounds like it won't be a problem
though :)

--- In ukha_d@y..., "Kenneth Watt" <kennwatt@b...> wrote:
> I think IIRC, the most I have in the one box is about ten, mixed
AD and
> LD's, though more LD11's than AD10's. There is heat there, but not
much.
> If you were putting a *lot* of modules in the one place you could
always
> fit a small fan to the case, even a PC case fan or two would do,
link
> these to an appliance module and put a Dallas stat in there and
> ventilate as required, just a thought mind you if it was really a
> problem.
>
> HTH
>
> K.
>