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dHH
dHH Explosion-proof signal horn
This product has the following explosion protection:
II 2 G Ex d e IIC T5, T6 Gb
II 2 D Ex tb IIIC T95 °C, T80 °C Db
-20 °C ≤ Ta ≤ +75 °C T5
-20 °C ≤ Ta ≤ +70 °C T6
Zone 1, 2, 21, 22
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dHH Explosion-proof signal horn

  • Loud, explosion-proof electromechanical signal horn with a typical horn tone
  • Certified for use in gas and dust hazardous areas of zone 1, 2, 21, 22
  • Flame-proof enclosure "d"
  • Terminal connection chamber "increased safety e"
  • Housing made of glass-fibre-reinforced plastic
  • Degree of protection IP 66, max. 105 dB (A) in 1 m
  • Protection class II, no equipotential bonding required
  • robust design
  • Model with integrated telephone-call current relay available

Especially suitable for

Technical data

HousingØ 190 mm, glass-fibre-reinforced polyester black (RAL 9005)
Type of mountinghorizontal, vertical or any, sound outlet preferably at front or bottom
Cable entry1x cable gland M20 x 1.5, 1x sealing plug M20 x 1.5
Connection technology1.5 mm² fine wire and 2.5 mm² single wire
ToneSteady tone
Volumemax. 105 dB
Duty cycle100 %
Operating temperature-20 °C / +75 °C (T5) -50 °C / +70 °C (T6)
Degree of protectionIP66
ApprovalPTB 01 ATEX 1133
Insulation classII
Weight5,5 kg