Dimmer "C" question

Hi all,

I was facing some problem of the dimmer output capacitor

From the info i know C-Bus pro dimmer like (L5104D5, L5102D10, L5101D20)
the output of these dimmer is depend on the "AMP" of load and "C" (1000nf) am i right?

How about normal din rail and 12channel dimmer?

 

thx ,

i get the info, but how about 12 channel high power dimmer?

 

For the 12-Channel Professional Architectural dimmer, the limit is stated on page 8 of the Installation Instructions. It is 5nF of capacitance per watt of total load. If you have 1000W of load then you can have 5000nF (5uF) of total capacitance on the channel. You also cannot exceed 10A of channel load, regardless of the model type.

 

Hi newman,

if total load of channel is 650W
means
650W * 5nF =3.25uF
the channel can support up to 3.25uF capacitor load right?

if total load of channel is 800W
means
800W*5nF= 4uF
the channel can support up to 4uF capacitor load ?

 

That's correct.

Of course there's always those strange cheap transformers out there but for the majority of name brand electronic transformers, that rule holds true.