Explosionproof Sounder dEV20 for use in zone 1 + 2, 21 + 22
Explosion-proof Sounder dEV 20 
for use in hazardous areas of zone 1(gas) and zone 21(dust) 
Application: indoors and 
outdoors (IP66) 
II 2G Ex de IIB + H2 T6 Gb 
II 2D Ex tb lllC T 85°C Db 
Housing: seawater resistant 
Volume: approx. 110 dB(A) 
32 signal tones, 2 stage alarm 
Temperature range: -55°C to +60°C 
Dimensions in mm: W 110 / H 243 / D 110
Following variants are available: (please click for details)
FHF21591007 Ex-Sounder dEV20 85-265VAC
FHF21591013 Ex-Sounder dEV20 24VDC
FHF22990101 Junction box with backplate for dSLB20(LED), dEV20, Expertline
Available Downloads (additional downloads in detail area):