INSTRUCTION MANUAL
STExS1
Alarm Horn Sounder
For use in Flammable Gas and Dust Atmospheres
E2S Warning Signals
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D199-00-001-IS
Issue 7
13-05-22
Sheet 1 of 8
STExS1R
STExS1F
1) Product Table
Standards
Model
Nominal
Input Voltage
Nominal
Input Current
Voltage Range
Max.
Current
Sound
Pressure Level
dB(A)
Max*
Nom
.†
STExS1RDC024
12Vdc
221mA
11.5-54Vdc
221mA
110
105
A
T
E
X
/
I
E
C
E
x
/
U
K
E
x
/
N
E
C
/
C
E
C
24Vdc
185mA
48Vdc
115mA
STExS1RAC230
115Vac
73mA
100-240Vac 50/60Hz
80mA
110
105
230Vac
48mA
STExS1FDC024
12Vdc
221mA
11.5-54Vdc
221mA
115
110
24Vdc
185mA
48Vdc
115mA
STExS1FAC230
115Vac
73mA
100-240Vac 50/60Hz
80mA
115
110
230Vac
48mA
*Max = Tone 4
†
Nom. = Tone 44
The table shows the input current taken by the various sounders.
The current levels shown above are for the 440Hz Continuous tone @ nominal input voltage.
Nominal current at nominal voltage.
Max rated current at worst case supply voltage.
Table 1: Electrical Ratings.
Ensure the system power supply is capable of providing the maximum current required for all beacons. Review associated cable size,
length and quantity of beacons on each circuit.
