Clipsal C-Bus Dimmer DIN Rail Mounted, Leading Edge, 240V AC, 8 Channel, 1A, With C-Bus Power Supply

Clipsal C-Bus Dimmer DIN Rail Mounted, Leading Edge, 240V AC, 8 Channel, 1A, With C-Bus Power Supply

Clipsal C-Bus Dimmer DIN Rail Mounted, Leading Edge, 240V AC, 8 Channel, 1A, With C-Bus Power Supply

Item Number: L5508D1A

Product Dimensions

Width icon

Width215 mm

Height icon

Height85 mm

Depth icon

Depth65 mm



Qty UoM EAN Colour



Sustainable offer status

Green Premium product



Product brand


Product or component type


Device application



[Ue] rated operational voltage

  • 220...240 V AC for dimmer
  • 15...36 V DC for C-Bus

Communication network type


Local signalling


Number of channels


Connector type

  • RJ45 for C-Bus
  • RJ45 for remote override

Mounting support

DIN rail

Clamping connection capacity

  • 1 x 2.5 mm²
  • 2 x 1.5 mm²


215 mm


85 mm


65 mm

Net weight

675 g

Ambient air temperature for operation

0...45 °C

Relative humidity

10...95 %

REACh Regulation

Free of Substances of Very High Concern above the threshold

REACh free of SVHC


EU RoHS Directive


Toxic heavy metal free


Mercury free


RoHS exemption information


China RoHS Regulation

 Pro-active China RoHS declaration (out of China RoHS legal scope)

Environmental Disclosure


Circularity Profile


Device presentation

basic element

Load type

  • incandescent
  • low voltage lamp with electronic transformer

Dimmer type

leading edge


Standby consumption

10 W

Power supply output current

200 mA

Network frequency

  • 47...53 Hz
  • 57...63 Hz

Maximum number of supported devices

10 per network

Input impedance

50 kOhm at 1-1 kHz

Isolation voltage

3.75 kV from C-Bus to mains

Starting time

5 s

Time delay range

0...33.5 min

Software function

  • select network clock
  • select network burden
  • select time delay range

Number of modules


Unit Type of Package 1


Number of Units in Package 1


Package 1 Weight

786.0 g

Package 1 Height

9.6 cm

Package 1 width

11 cm

Package 1 Length

22.8 cm


The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins

Load current

1 A per channel
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Frequently Asked Questions

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What to do when C-Bus dimmer channel will not turn off ?

- Initially check that the programming is correct.

- If using LED lights, the LED may stay on when the channel is off, this is due to the leakage current being enough to power the LED, use of a 31LCDA may resolve this issue.

- If using Halogen and  the channel will not turn off, there may be damage to the electronics on this channel - Electricians only to perform this check, disconnect the Active's , Neutral and Earth from the unit, remove the cable for the load on that channel then with a multimeter check between the Neutral and that suspect channel output, if you see a low resistance the Triac has shorted.

- Advise not to use this channel and label as faulty, other channels on this dimmer should still be ok to use as per normal, alternatively you could return this unit for a quote on repair, note a repair may not be possible.

My lights won't dim correctly on a C-Bus Leading Edge Dimmer?

Does this installation have 3 Phase power??

If so, check that the 'Control' side and the 'Switching' Side of the Leading Edge Dimmer are connected on the same voltage phase! You are not able to have a separate voltage phase on either of these connections as this unit is not internally connected...

See, Notes: on page 5 of the linked document