SI312 acoustic siren is suitable for application where it is necessary to use an alarm signal indoors or with low background noise. Suitable also to be installed in hazardous area, zone 1 and 2. Sounds selected are 32, like: BI-TONE – YELP – WAILL – INTERMITTENT –FIXED NOTE.
- Aluminum body and cover without copper
- Screws in AISI 304
- An entrance hole Ø ¾ "ISO 7/1"
- explosion proof protection rating:
- II 2GD Ex d IIC T6 Gb
- II 2GD Ex tb IIIC T85 ° C Db - protection rating : IP65
SI312A 
Power supply: 230 Vac 50/60 Hz
Power: 4 w
Measure Range: 106 Db
Acoustic frequency: 340 ÷ 2000 Hz
Service: continuous
Weight: Kg. 1,5
Operating temperature: - 20 °C ÷ + 55 °C
SI312B
Power supply: 12÷24 Vac/Vcc
Power: 4 W
Measure Range: 102 Db
Acoustic frequency: 340 ÷ 2000 Hz
Service: continuous
Weight: Kg. 1,5
Operating temperature: - 20 °C ÷ + 55 °C
SI312 acoustic siren is suitable for application where it is necessary to use an alarm signal indoors or with low background noise. Suitable also to be installed in hazardous area, zone 1 and 2. Sounds selected are 32, like: BI-TONE – YELP – WAILL – INTERMITTENT –FIXED NOTE.
- Aluminum body and cover without copper
- Screws in AISI 304
- An entrance hole Ø ¾ "ISO 7/1"
- explosion proof protection rating:
- II 2GD Ex d IIC T6 Gb
- II 2GD Ex tb IIIC T85 ° C Db - protection rating : IP65
SI312A
Power supply: 230 Vac 50/60 Hz
Power: 4 w
Measure Range: 106 Db
Acoustic frequency: 340 ÷ 2000 Hz
Service: continuous
Weight: Kg. 1,5
Operating temperature: - 20 °C ÷ + 55 °C
SI312B
Power supply: 12÷24 Vac/Vcc
Power: 4 W
Measure Range: 102 Db
Acoustic frequency: 340 ÷ 2000 Hz
Service: continuous
Weight: Kg. 1,5
Operating temperature: - 20 °C ÷ + 55 °C
