This smart 48VDC Casambi Master-slave system from Rayrun can power a total of 160Watt LED spots (optional 320Watt). The master - which you place view - supplies 48VDC as well as the current dimming value to the slaves via the same 2-wire cable. In the Casambi app you can 'adjust' several parameters, including the current value.
(set current and dimming value is the same for all slaves).

The slaves can each supply a maximum of 20W. In this way you have made an affordable Casambi circuit that is completely flicker-free, partly because the 48VDC is disconnected from the 230V. So with this system you only the LED to purchase!

There is a choice of 2 Masters;
PD-200CB (160Watt max) and PD-400CB (320Watt max)

Two types of slaves are available;
PLC-SD-20 (IP63) and PLC-SD20-S (IP68)

It is important that you understand that the current value (mA) of your LED affects the power of the output of the driver, you can read all about this in our BLOG

overview RAYrun Casambi PD200-CB series

Below is the heavier PD400 variant;


Below you see settings of the Rayrun PD-200/400 that you can change in the Casambi app;

gradient speed; is the dimming speed;

Current Trim;
Suppose you have selected a profile of 700mA and that is a bit too much, then you can set the trim to eg 90%. This means that the driver will supply 90% of 700mA or 630mA.

Here you can see the available profiles with corresponding flow values. For intermediate current values, use the 'current trim', more information about this can be found in the 'parameters'.

profile choice Rayrun PD-200-400 series

connection voltage; 230V on the Master.
Master secondary voltage; 48VDC
Master maximum power (PD2-CB); 160Watt
Master maximum power (PD400-CB); 320Watt
slave; 0/700mA (Max. 48VDC on the output)
number of slaves; unlimited provided that the power on the master is not exceeded.

The desired mA value is set as a 'profile' via the app before you add the device to your network. Afterwards, all slaves will work at that current value, whereby a maximum of 20W may be connected per slave. Each slave can generate a voltage between 0 and 48VDC on the output. Suppose you connect an 8W 200mA spot to the slave, then applies; U=P/I = 8 / 0,2 = 40V or within the working range. A nice side effect of this system is that you can feed and dim everything with low voltage.

You can also imagine that there is an installation with halogen spots that have to be exchanged for LED. You then simply cut the power supply somewhere, connect the Master and the rest of the installation then becomes 48VDC with also the data over that line. At the spots you always place a slave with your LED spot of your choice.


Rayrun Casambi SD20 slave

Rayrun Casambi PD Master Slave Series