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DEV20 - Atex Sounder for Zones 1, 2, 21 & 22

Hazardous areas often require the use of acoustical signals for warning or information purposes.T

he ExII-sounder dEV20 offers both of these signalling features. The device is designed for continuous operation. If the supply voltage is turned on,the sounder is activated.

TheExII-sounder dEV20 is made to protection category IP66 and may be used indoors or outdoors
Explosion proof Sounder DEV20
  • 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 IIC T6 Gb
  • II 2D Ex tb lllC T 85°C Db
  • Housing: seawater resistant aluminium
  • 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

DEV21 - Explosion Proof Sounder for Zones 1 & 2

FHF Explosion proof Sounder

NMETRO, UL or GOST approved
versions of the FHF DEV21 also available.
  • Explosion proof Sounder with approx. 119 dB(A)
  • Application: Atex Zone 1 + 2, IP66
  • II 2 G Ex dem IIC T6
  • Housing: Glasfibre reinforced polyester (GRP)
  • Housing colour: black or red
  • 31 different signalling tones
  • 4 tones externally selectable
  • AC and DC versions available
  • Integrated installation box, no junction box required