ACOUSTIC SIGNALLERS – SERIES ETH 20
Acoustic signallers suitable for hazardous area Zone 1 & Zone 21
Ex d / Ex tb – IP66
These acoustic signallers are specific for alarm signalling in potentially explosive atmospheres in ambients featuring significant background noise. They have 32 selectable sounds. They work in continuous duty.
The external screws are in Stainless Steel AISI 304.
Features
Type of protection: Ex d / Ex tb
Degree of protection: IP66
Certified for:
- Gas group IIC or IIB+H2
- Dust group IIIC
Max range ambient temperature: -50°C ÷ +60°C
Material used: Aluminium light alloy
Max rated voltage: 230 Vac / 110 Vdc
Sound intensity: 112 dB
Weight: 3700 g
