MST71 Siren element 8 tone 24VDC BK

Part No.: 685.839.55
Series: MST 71
Diameter in mm: 70 mm
Voltage: 24V DC
Sound output: 102
Protection rating: IP65





Mechanical data

Height 53 mm
Diameter 70 mm
Materials PC
Housing colour Black
Protection category IP65
Working temperature minimum -30°C
Working temperature maximum +50°C
Weight with packaging 75 g
Product weight 60 g


Electrical data

Operating voltage 24V
Operating voltage type DC
Operating voltage tolerance +/- 10%
Rated operational voltage 24 VDC
Rated operational current 30 mA
Rated inrush current 500 mA
Protection class Protection class 3
Pollution degree 3
Request to external PSU SELV/PELV


Acoustic data

Volume (max) at 1m distance 102,0 dB (A)
Acoustic signal image Multi-tone
Number of tones 8 tone
Acoustic service life 5,000 h minimum


Approval data

Conforms with CE Yes
Conforms with ATEX-directive No
Conforms with CCC No
Conforms with UL No
Conforms with FCC No
Conforms with IC No
EAC certificate available No
Conforms with UKCA (Importer) Yes (WERMA (UK) Ltd.)
Conforms with AS-I No
ICAO Certification No
Conforms with DNV No
Conforms with RoHS CN No
Conforms with VdS No


Dimensional Drawing


Signal Tower——MST 71

Techn. datasheet 685.839.55