Re: Which type of MCB to protect C-Bus dimmers

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

'bit disappointing, this, I'd have thought ... 'cost of a fuse added to
'cost of a bulb, everytime one blows ... our old Superswitch dimmers &
security switches were like that, with a 20mmm fuse in each unit having
to be replaced almost everytime a bulb blew ... and the units themselves
failed after about five such cycles ... expensive, in other words !
How fragile is C-Bus kit overall, I wonder ?   In the commercial world,
I doubt such things would be tolerated - how long do dimmable HF
electronic ballasts for fluorescent strip-lamps last, for example ?

Chris



Nigel Giddings wrote:

> One weakness of C-Bus dimmers, as I understand it, is that a bulb
> blowing can take out a Dimmer Channel.
>
>
>
> I'm looking at protecting the O/P of the C-Bus dimmers with 1A MCBs
but
> not sure what type (B, C or D) to use
>
>
>
> What type of MCB would people suggest to protect C-Bus Dimmers?
>
>
>
> Type B seem to offer most protection but their appears to be a school
of
> thought that Type C should be used for lamps... If I were to use Type
C
> would I still end up blowing the C-Bus Dimmers...
>
>
>
> TIA
>
>
>
> Nigel