How can I connect a built-in LED Dimmer

How can I connect a built-in LED Dimmer

In this article, you will find the step-by-step plan for connecting the built-in LED dimmer.

Herein an explanation is given about:
  • Connect wiring, in the case of 1 dimmer and with alternating switch 
  • Adjust the LED dimmer on your LED lamps, for stable light & optimum dimming ability 
  • Attach cover material to the LED dimmer, both and all other brands of cover material

Choose the right dimmer

First of all, it is important that you have the right dimmer for your LED lamps. This means that you must consciously opt for an LED dimmer phase cut-off or LED dimmer phase cut-off. This is to prevent buzzing or flashing LED lights. Do you not know which LED dimmer your LED lighting needs? Then read our article ' Which LED dimmer do I need? ".

Do you have the right dimmer for your LED lamps? Then read on before connecting the LED dimmer.

Installing a step-by-step LED dimmer

Step 1: Remove the dimmer button and the cover frame

Grasp the round knob with both fingers and pull it off the cover frame. This can be a bit stuck, but you can safely pull it. You don't have to worry about it breaking off. No tools are required.

Then loosen the nut and washer with your fingers or with a pair of pliers to finally remove the cover frame from the dimmer.

Step 2: (Only applicable to .01 / phase cut) Add the wattage of the total connected lighting and set the jumpers according to the jumper settings.

Add up the total power (wattage) of the connected LED lights. Then adjust the jumpers accordingly, as shown in the diagram on the left. You can pull out the jumpers with your fingers, a pair of pliers or tweezers and place them in the correct position.

Step 3: Switch off the electricity. Then connect the LED dimmer according to 'Connection diagram'.

Always ensure that the electricity is switched off during installation.

Normally you have 2 wires to connect the LED dimmer: a power wire and switch wire. Place the power cord (brown) in the "L". This is the rightmost box. Place the switch wire (black) in the box to the left (wave + arrow).

Secure the wiring by tightening the screws from the top of the dimmer.

- Do you want to use the LED dimmer in alternating / hotel switching?
Which can. You can use an alternating switch with 1 LED dimmer and 1 on / off switch. Place the power wire in the "L" and the 2 switch wires in the 2 middleboxes. For illustration see the connection diagram for the alternating circuit (left).

- Does your wiring have a different color?
Switch wire: Black = Current flow from dimmer to the light point
Phase wire: Brown (nowadays) or green (earlier) = Constant current
Neutral wire: Blue (nowadays) or red (earlier) = Current drain. Do not connect to dimmer.
Earth wire: Yellow + Green (nowadays) or gray (previously). Do not connect to a dimmer.

- Do you have 3 or 4 wires?
You always have a power wire (brown/green) and a switch wire (black). It is possible that more than 2 wires come out of the wall. In the case of 2 wires, connect both in the "L" or connect both wires with each other (by means of a welding clamp). With 2 switch wires, you connect both in the 2 middle boxes (wave + arrow). Do you have another color of thread? Then consult an installer.

Step 4: Install the LED dimmer in the junction box. This can be done with screws or with the built-in clamps.

Place the dimmer in the junction box. Do you have a flush-mounted box with screw holes? Then fix the dimmer with screws. Do you have a flush-mounted box without screw holes? Then turn the dimmer's mounting clamps to clamp it into the mounting box.

Is the flush-mounted box too narrow for the LED light dimmer? Then remove the mounting clamps to create more space.

Step 5: Switch on the electricity again. Switch on the connected lamps with the dimmer shaft. Now adjust the dimming ability with (FINE and) COARSE. 

.01 / phase broker has FINE & COARSE.
.02 & .03 / phase cut-off only have COARSE.

Turn the dimmer shaft as far as possible to the left (minimum light output). Then turn the COARSE potentiometer as far as possible to the left with a small screwdriver to further dim the LED lamps. Stop turning at the point before the light becomes unstable. Finally, you can (with the .01) refine the dimming ability with the FINE.

Thanks to these potentiometers you can set the optimal dimming ability and light stability of your LED lamps. You only have to adjust this once you keep the same LED lights connected.

- Is the light not completely stable? Then turn back slightly with the FINE or COARSE meter.
- Does the lighting give a real strobe effect? Then you probably have a LED dimmer 'phase cut-off' (RL) installed on LED lamps working with 'phase cut-off' (RC), or vice versa. Always choose the LED dimmer suitable for your LED lamps. Read more about choosing the right LED dimmer here.

Step 6: Place the cover frame and the dimmer button on the dimmer.

Finally, mount the cover material on the LED light dimmer. This can be the supplied cover material (cover frame and dimmer button), but you can also use your own cover material. You can attach any other brand of covering material to this LED dimmer.

Matching brands of cover material on this LED built-in dimmer.
  • Berker by Hager
  • Busch-Jaeger
  • Gira
  • JUNG
  • Merten by Schneider
  • Niko
  • PEHA
The LED dimmer is delivered incl. 2 accessories. For Busch-Jaeger you use the thickening button and the iron plate. You only need the iron plate for Niko. This is also clearly described in the installation manual.

Step 7: You are done. Enjoy your dimmable LED mood lighting!

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