Re: CBus power usage

[John Benfield <john.benfield@xxxxxxxxx>]

Oh I do know that when I CBus dimmer is "OFF" you can still
get a
shock from the transformer - gave me a nasty surprise once :-(

2009/3/31 Keith Doxey <ukha@xxxxxxx>:
>
> As I think it was Keven who said, a lot of that power could be leakage
> through the dimmers. Not having C-bus I don't know if they physically
> disconnect the loads when "OFF". If they don't then there
will be a small
> amount of leakage through the snubber circuits in the dimmers. If you
have
> MCBs on the outputs as some people have done, flick them all off to
see what
> the consumption of the Cbus kit is without any loads connected.
>
> I know that Lutron in there high end dimmers have triacs that do the
dimming
> 0-100% but thet there is also a relay that physically breaks the
circuit
> when OFF as opposed to 0% thereby removign all leakage currents. It
also
> means that in the event of a triac blowing (the usually fail short
circuit
> leaving a lamp on) you can still turn the light off.
>
>
> Keith


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