Quadro S-M-Flex

Flashing lights 13 Joules

Proven tunnel safety light; conforms to the guideline of the Swiss Federal Highways Authority: ‘Signaling systems of safety devices in tunnels’

  • synchronised flashing of up to 10 beacons in series with no additional controller
  • initial current limited to below 1 A
  • integrated function monitoring with fault message contact
  • variable brightness and flash frequency settings on-site on the device
  • use of double-pole terminals for the simple connection of parallel operated lights

protection system

protection system

impact-proof housing

inrush current limitation


operating temperatur

EurAsian Conformity

Pfannenberg 3D-Coverage

Size of visual coverage (A x B x C in meter)

Indicate Warning Alert
To display other values click the CLEAR SELECTION field. Now select the desired lens colors or alarm levels.

The figures shown are mainly for a quick orientation. For an individual and precise interpretation please use Pfannenberg Sizing Software (PSS).

Technical data

Electrical dataQuadro S-M-Flex
Rated voltage230 V AC115 V AC
Rated frequency50/60 Hz50/60 Hz
Operating range195–253 V95–127 V
Nominal current consumption250 mA (1 Hz / 13 J)350 mA (1 Hz / 13 J)
Initial current limited to<1 A / 10 ms
Alarm output230 V / 80 mA


Description Language Type Size Download

Product Sheet

  • English
pdf 220 KB Download

Operating manual

  • German
  • English
  • French
pdf 840 KB Download

3D-Model (IGS)

  • English
zip 180 KB Download

3D-Model (SAT)

  • English
zip 130 KB Download

3D-Model (STEP)

  • English
zip 140 KB Download

Declaration of Conformity

  • German
  • English
pdf 330 KB Download
  • English
  • German
pdf 330 KB Download

EAC Certificate

  • Russian
pdf 1.3 MB Download

Ordering details

Ordering detailsQuadro S-M-Flex
Lens colourRated voltage230 V AC
clearArticle number21042101179
yellowArticle number21042103179
amberArticle number21042104179
redArticle number21042105179

Choose a lens in one of the following colours: clear, white, yellow, amber, red, green, blue 

Further technical details, performance curves and dimensions can be found in the Download Section on this page under Product Sheet.

Please indicate the requested approval in your order. Approvals may differ for some product variations or combinations. Please contact us.

Article numbers for products with further lens colours and voltages on request.

Product Benefits

  1. 1

    Positive enclosure sealing

    Leak path risk is eliminated since the lens fastening screws are located outside the sealing gasket area.

  2. 2

    Impact resistant housing and lens

    Achieves IK08 impact rating to endure harsh environments.

  3. 3

    IP 66/67 enclosure rating

    Suitable for use in all weather conditions due to the provided protection against driving rain, snow, ice, and dust. Withstands hose-directed spray during wash-down requirements.

  4. 4

    –40 °C to +55 °C temperature range

    Suitable for use in thermal conditions encountered in factories and all corners of the worlds.

  5. 5

    Inrush current regulator

    Provides electrical protection for control devices such as switching components and relays.

  6. 6

    Flexible wiring schemes

    Multiple cable and conduit entries provide ease of installation in any orientation.

  7. 7

    Redundant electrical contacts

    Provides ease of wiring and daisychain connection for multi-unit installations.

  8. 8

    High quality, long life components

    Provides the utmost in reliability and longevity.