LED blinking light/sounder combination
  • very economical visual and acoustic alarm
  • certified for use in Ex-Zones 0, 1 and 2!
  • compact design with a diameter of just 88 mm
  • alarm operated via certified zener barriers or galvanic isolators
  • 49 loud tones at 102 dB(A); super bright LEDs in red, green, blue and yellow/amber for all applications
  • volume control
  • signals can operate separately
  • very well suited for fire alarm systems and direct control due to low power consumption
  • self-synchronising sounder for clear tone perception
  • 2 different externally controllable tones

Here you can find suitable Zener barriers.

protection system

operating between +60 / –40 °C

Technical data

Electrical dataIS-mC1
Rated voltage24 V DC
Operating range16–28 V
Nominal current consumption48 mA¹

1 typical for connection to 24 V DC via 28 V / 300 Ω zener barrier. Power must be connected via a zener barrier (max. 28 V DC, 93 mA DC, 0.66 W) or galvanic isolator, specified by the system certificate

Choose your LED in one of the following colours: yellow/amber, red, green, blue.

Further technical details can be found in the Download section on this page.


Description Language Type Size Download

Product Sheet

  • English
pdf 2.3 MB Download


  • English
pdf 79 KB Download

Ordering details

Ordering detailsIS-mC1
Colour LEDRated voltage24 V DC
yellow/amberArticle number32035804000
redArticle number32035805000
greenArticle number32035806000
blueArticle number32035807000

To make the order process easy for you and to ensure a secure delivery, please see the information on the final article numbers.

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