The ECN-D electronic siren is the perfect solution for siren networks and large industrial complexes

The high-performance ECN-D siren family has been designed for complex warning systems, such as national or regional mass warning and notification systems or for warning systems in refineries. The latest technology based on digital amplifiers and our many years of experience in the development of electronic sirens has been incorporated into this new siren generation.

During development, the focus was on combining functional flexibility with a high level of reliability and simple, cost-effective maintenance – for a cost-optimised and dependable warning system based on electronic sirens. This includes, for example, the extremely efficient amplifier with efficiency of over 97%. This significantly reduces power consumption in the event of an alarm and therefore allows for the use of smaller batteries. The modular design ensures that the optimum solution is always found regardless of the conditions in the area that needs to be covered.


  • Efficiency of 97% for low power consumption
  • Modular design for individual configuration
  • Easy to maintain thanks to 19-inch technology
  • Durable and robust assemblies
  • Extremely low maintenance and operating costs


  • Electronics without loose cables
  • Standby time of up to 7 days 
  • Alarm signal remains at the same output for up to 30 minutes – even in the event of a power failure
  • Automatic self-monitoring


  • Siren horns made of aluminium
  • No moving parts such as fans or hard drives
  • Robust design


  • National siren networks / mass notification systems
  • Regional siren networks / mass notification systems
  • Warning civilians in cities and municipalities
  • Tsunami early warning systems
  • Flood warning systems
  • Complex warning and notification systems, e.g. in the oil and gas industry
ECN-D Sirens in Chemnitz

Product benefits:

  • The latest digital technology
  • Low energy consumption
  • Maximum reliability
  • Modular design
  • Sound level of up to 123 dB(A)/30 m / with 360° all-around emission
  • Simple maintenance thanks to 19-inch technology
  • Customer-specific alarm signals plus voice output

Performance class technical data

Electronic siren model ECN 600-D ECN 1200-D ECN 1800-D ECN 2400-D ECN 3000-D
Volume/Sound pressure level 109 dB(A)/30 m 115 dB(A)/30m 118 dB(A)/30 m 121 dB(A)/30m 123 dB(A)/30m
No of horns 4 8 12 16 20
Weight siren head* 28 kg 59 kg 89 kg 121 kg 152 kg
Head dimensions (W/H/D) in mm* 300 x 950 x 850 300 x 1605 x 850 300 x 2260 x 850 300 x 2900 x 850 300 x 3550 x 850
Windload at 160 km/h* 522 N 1064 N 1614 N 2200 N 2650 N
Weight cabinet incl. batteries 84 kg 85 kg 86 kg 87 kg 88 kg

*Double column assembly

Specifications are subject to change without notice

System and cabinet technical data 

Fundamental frequency 415 Hz / 425 Hz
Sirenen sound/Alarms Customer specification
Stand-by time up to 7 days
No of alarms* up to 20
Material of horns Alloy

*within 48 hrs without power supply

Siren cabinet
Power supply 230 V or 110 V +/- 10%
Battery voltage 24 V
max. charging current 4 A
Cabinet dimensions (W/H/D) in mm 600 x 600 x 350
Protection class IP 65
Ambient temperature range -25°C .... +65°C


Specifications subject to change without notice.


Digital amplifier technical data

Class-D amplifier / PA-D8

  • Output power 300 W at 5–7 ohms
  • Bandwidth 100 Hz–20 kHz
  • Efficiency > 97%
  • Harmonic distortion < 4%
  • Derating in case of overload
  • Short-circuit-proof
  • Status LEDs
  • 19" shelf, 8 division units
  • Weight 0.3 kg 

CP1+ control panel technical data

Control panel / CP1+

  • Embedded ARM7 CPU with RTX OS
  • Real-time multi-tasking operating system
  • HÖRMANN Process System Interface
  • Interfaces: Ethernet, FC, 600 ohms, serial (USART, SSP, RS232/485)
  • LCD display for status and operation
  • Robust membrane keypad for local alerts and siren test
  • Voice memory with SD card
  • Module for live voice announcements


Electronic siren ECN-D data sheet specifications

Electronic Siren ECN-D data sheet

Electronic siren ECN-600 D data sheet specifications

Electronic siren ECN-600 D data sheet

Electronic siren ECN-1200 D data sheet specifications

Electronic siren ECN-1200 D data sheet

Electronic siren ECN-1800 D data sheet

Electronic siren ECN-1800 D data sheet

Electronic siren ECN-2400 D data sheet

Electronic siren ECN-2400 D data sheet

Electronic siren ECN-3000 D data sheet

Electronic siren ECN-3000 D data sheet