IS-Mini series Sounders 100 dB (A)
  • very economical acoustic alarm
  • certified for use in Ex-Zones 0, 1 and 2!
  • compact design with a diameter of just 88 mm
  • sounder operated via certified zener barriers or galvanic isolators
  • 49 loud tones at 100 dB (A)
  • very well suited for fi re alarm systems and direct control due to low power consumption
  • self-synchronising sounder for clear tone perception
  • 2 different externally controllable tones
  • volume control
  • also available as mining-certified device (IM1 EEx ia)

Here you can find suitable zener barriers

protection system

operating between +60 / –40 °C

EurAsian Conformity

Technical data

Electrical dataIS-mA1
Rated voltage24 V DC
Operating range16 V – 28 V
Nominal current consumption25 mA (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 a galvanic isolator, specified by the system certificate.


Description Language Type Size Download

Product Sheet

  • English
pdf 2.2 MB Download

Ordering details

Ordering detailsIS-mA1
Rated voltage24 V DC
Article number32034800000

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 other voltages and options on request.