E2S STExS2 Explosion Proof Sounders

E2S STExS2 Explosion Proof Sounders


E2S STExS2 Explosion Proof Sounders for Hazardous Area Signalling Applications

The STExS2F are high output 123dB(A) alarm horn Explosion Proof Sounders with a re-entrant flare horn. The robust IP66 corrosion proof 316L stainless steel enclosure ensures the STExS2F is suitable for all Zone 1, 2, 21 & 22 explosion proof signalling applications. Featuring 64 first stage/channel alarm sounds which can be selected via an internal switch. The alarm tone frequencies for the first 2 stages are independently selectable. Each tone can be remotely triggered e.g. via an external relay, to change to a second, third or fourth stage/channel alarm sound. The enclosure features a threaded flame path, triple cable entries and a large termination area – all of which significantly reduce installation time.

  • Operational Characteristics: 
– Electronic sounder up to 123dB.
– Ex d IIC zone 1 & 2 (IECEx).
– 64 tones, including ISO tones to Australian Standards.
– Automatic synchronisation on multi-sounder systems (requires sounders to be connected to the same supply).
– Volume control.
– Four stage alarm.
– Line monitoring with blocking diode or optional EOL resistor.
– Sound Output: Max – 123dB @ 1m, Nominal – 117-105dB with volume control.
– Sound Frequency: 64 tones (see tones table in attached pdf).
– Protection Rating: IP66 (IP67).
– Temp Rating (degrees Celsius): -50 to +70.
– Duty: Continuous.
– Cable Entry: 3 x M20 ISO (two stopping plug included).
– Construction: 316L stainless steel housing and mounting bracket, ABS flare.
– Approval: II 2G Ex d IIC T6 (max ambient temperature +45 degrees Celsius), II 2G Ex d IIC T5 (max ambient temperature +60 degrees Celsius), Ex db IIC T4 ( max ambient temperature +70 degrees Celsius).
– Certificate: IECEx ULD 16.0017X.
– Weight: 6.55kg.


Order Code Description
ESSR6210X  10-30VDC, 924mA.
ESSR6215X  30-60VDC, 268mA.
ESSR6230X  100-260VAC, 159mA.


(please see attached PDF’s for further information)