EATON MEDC: DB4B

The DB4B is a high power explosion proof loudspeaker, introduced as a replacement for the current DB4 with improved intelligibility and acoustic performance. Certified for use in a wide range of temperatures (from -55ºC to +70ºC) the Ex enclosure is manufactured from GRP with a rugged thermoplastic flare providing a corrosion free and aesthetically pleasing product.

The frequency response of the unit ensures that critical voice messages and general alarm tones are highly intelligible. The specific SPL figure for sensitivity is 1W @ 1m is 113dB whilst at 1m the 25W unit produces 127dB, the 15W unit 125dB and the 8W unit 123dB.

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Features:

  • Ex d / Ex de IIC/IIIC T3/T4/T5/T6 Ex d IIC/AEx d IIC Gb
  • ATEX certified
  • IECEx certified
  • UL certified for USA and Canada Class I, Div 2, Groups A-D Class I, Zone 1 Class II, Div 2, Groups F & G Zone 21 Class III, Div. 1
  • TR CU certified
  • CCC certified
  • INMETRO certified
  • CCOE certified
  • SIL 2 certified
  • DNV GL type approved (IEC60945) (Long Flare, Ex d only)
  • Certified temperature -55ºC to +85ºC*
  • IP66 & IP67/ NEMA 4X & 6 • Optional Ex e terminal chamber
  • 124dB at 25W, 1m*
  • 8W, 15W & 25W versions
  • Power tappings, via integral transformer
  • Frequency response 350Hz – 8kHz
  • Ex enclosure – glass reinforced polyester
  • Flare – high impact thermoplastic polyester
  • Internal earth stud fitted as standard
  • Stainless steel mounting bracket and cover screws
  • Mounting bracket has ratchet facility as standard
  • Optional swivel bracket available
  • Optional resettable fuse† * Depending on version † Contact MEDC for details

Download Datasheet – DB4B

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