Dimmer switch: two gang 400W / 220W -- possible?

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Does such a beast exist: a two gang dimmer switch with one powering up to 400W (preferably a little over since I'm planning 8x50W LV halogens) and the other powering up to 220W (I'm planning 11x20W LV halogens). I'd quite like one of those touch-type dimmers, but won't be too fussy if it's a push-type ! I think I only need one-way (I'm a little naive here though -- I'm assuming I only need one-way when each switch is only powering a single lighting circuit).
Many thanks!
Mike
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On 01/02/2004 Michael Brewer a wrote :

You cannot normally run a LV lighting cicuit from a dimmer.
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On Sun, 01 Feb 2004 21:37:44 GMT, Harry Bloomfield

You didn't used to be able to, normally. A lot of LV transformers and dimmers are now rated for dimming transformers because of the popularity in recent years. Check the transformers to see if they are dimmable and check the dimmer to see if it is rated for dimming LV transformers.
SJW A.C.S. Ltd.
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On Sun, 01 Feb 2004 21:37:44 GMT, Harry Bloomfield

You can as long as you choose the right types of dimmer and voltage conversion. A lot of the so called "electronic transformers", in reality switched mode power supplies, can be controlled by a suitable dimmer.
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Harry Bloomfield wrote:

Nine are. Dimmable electronic transfomers.
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Harry Bloomfield retched Dimmer switch: two gang 400W / 220W -- possible? onto my recliner:

You're the dimmer.
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Phil K.

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ng_abuse-subscribe wrote:

Ohh. Who's not had a shag for a week then?

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Why, are you up for one with him?
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ammunition available and also how cheap it is. An average price for a 50
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Who me? No, it's him! retched Dimmer switch: two gang 400W / 220W -- possible? onto my recliner:

Paedo's everywhere!
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Phil K.

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The Natural Philosopher retched Dimmer switch: two gang 400W / 220W -- possible? onto my recliner:

How the hell am I supposed to know?
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Glancing at the TLC cat., you might be lucky to find exactly what you want - 2 x 300 seems to be the most you can get if they are to be used for low voltage lamps. 400 watt single gang is available, though
However, I think that the 300 and 400 watt types are the same - they simply derate them to 300 watts when there are two on one plate because of heat. So you might get away with running one over its 'limit' if the other one is lightly loaded. The way out would be to use grid switch dimmers - where you assemble your own choice, but they are frighteningly expensive - about 70 quid for what you want.
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wrote:

Thanks everyone for your help. It seems as though such an arrangement is difficult to achieve without using the grid system. However, with a bit of searching I have found the following at http://www.buy-electrical.co.uk/ :
"Remote and Touch Control Dimmer 400w 2 gang. 37.50 A revolutionary new range of touch control dimmer switches. Can be used with Low Voltage Halogen and GZ/GU10 Mains Halogen. A touch sensitive button in the centre of the plate and a tiny lens in the centre of the button designed so as to not spoil the overall look of the product. You can dim the lights using touch control or using a remote control. They have a soft start to extend lamp life and overload protection with automatic reset. In learning mode, it can be taught any button of most existing infra-red remote controllers. Full instructions with diagrams are included with the dimmer. 2 *400w. "
I queried this with them, and they confirmed that it's "400w on each gang. i.e. 800w".
What do you think?
Another question following up on what someone else said, would you need a "two-way" dimmer switch for an arrangement where you have another (standard on/off) switch at the other end of the room? The above dimmer switch doesn't specifiy one or two way. Thanks.
Mike
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Michael Brewer wrote:

Most are. Apart from the rotary only ones.
If you are a bit inventive BTW you can take the dimmer apart,
add a remote external bigger TRIAC on a decent heastink,
and get any wattage you like, really.

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wrote:

This post is better suited as a follow-up to my previous follow-up to the above, but my previous follow-up has not yet appeared. I hope this doesn't cause too much unecessary / duplicate posting.
I have had further clarification from buy-electrical: The dimmer switch I found is "Maximum of 300w per gang when switching halogen using electronic dimmable transformers". So it looks very much like MK grid is the only way to go to get 400W / 220W.
Unless I just put in two completely separate single gang dimmer switches side-by-side (perhaps only marginally less wall space than the three-module width required for MK grid?) -- is this completely unconventional / daft?
I also checked about one-way / two-way for the buy-electrical switch, and got the following reply: "Dimming is two way, but you must have one master and one slave dimmer is circuit, not light switch".
Cheers, Mike
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On 2 Feb 2004 04:35:53 -0800, snipped-for-privacy@drmrb.fsnet.co.uk (Michael Brewer) wrote:

You could do that. The only issue is the aesthetics.
A 3 module grid plate is the same size as a 4 module - 86mm x 146mm
1 and 2 module plates are 86mm square, the same as a regular plate switch.
You would have to carefully measure to position the boxes, but you could butt two plates together - total width 172mm.

.andy
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Two one gang will take up slightly more space than one three/four gang, as well as not looking so good, IMHO. You could get a two gang blank plate of the same pattern as your existing fittings, and mount two single gang 400 watt dimmers on that - all that's needed to fix them to it usually is a suitable hole.

It depends on the type. Some dimmers have a two way switch, and can be used with a second switch *only*. Of course, then the lights can only be switched on or off at the switch end at the level the dimmer is left at. IIRC, all dimmers with a push on/off switch are two way. Rotary on/off aren't.
There are, of course, specialised dimmers that allow full control from more than one place.
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Michael Brewer wrote:

I don';t hae that.
I have a dimmer, and a switchm, bith two way.
Only problem is if someone switches it off with the dimmer turned right down...:-)

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On Sun, 1 Feb 2004 20:42:08 -0000, "Michael Brewer"

You can get these in MK's Grid range. They make a 400W and a 250W version (K4500 series). These are push on and push off and are also soft start which does seem to help bulb life as well as the eyes if you switch them on in the dark.,
Look at
http://www.tlc-direct.co.uk/Products/MKK4500.html
http://www.tlc-direct.co.uk/Products/MKK4501.html
These are suitable directly for LV halogen lighting if you use a suitable electronic transformer such as
http://www.tlc-direct.co.uk/Products/LTYT250.html
The switches are 2way, so you could have another plain 2 way switch at a different location if you wanted to do so.
I have never found a two gang dimmer that will fit a single plate switch size - the largest seems to be 2x300W. It's a matter of getting the heat away.
The 400W version of the Grid system dimmer has a larger case and takes two module widths so the two dimmers would take a three module box. You could go for a larger one if you wanted to have more circuits controlled. For example, I have an 8 way one in my kitchen for the various lights in there and the conservatory. The advantage of this system is the modularity.
For fitting, you would need
mounting frame http://www.tlc-direct.co.uk/Products/MKK3703.html
metal box http://www.tlc-direct.co.uk/Products/MK892.html
plate http://www.tlc-direct.co.uk/Products/MKK3633.html
These are just the white plastic versions. MK make Grid plates in all their fittings ranges, including the brass and chrome types You can order the switches and dimmers in white or black plastic, (for example, I have black plastic and brass) but white is commonly available.
.andy
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Sorry to interrupt, but do you mean never found a 2 gang dimmer above 300W to fit a single mounting box?
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On Sun, 01 Feb 2004 23:18:01 GMT, snipped-for-privacy@telling.you (Lurch) wrote:

For example, 400 + 300 or even 400+250 in a single mounting box width.
I checked a few suppliers and can't find anything with a total of

.
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