MEDC DB4B
- Ex d / Ex de IIC/IIIC 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, Ex d IIC/AEx d IIC Gb
Class II, Div 2, Groups F & G Zone 21, AEx tb IIIC
Class III, Div. 1 - TR CU certified
- CQST certified
- INMETRO certified
- CCOE certified
- SIL 2 certified
- DNV type approved (IEC60945)
- CSFM certified
- Certified temperature -55ºC to +70ºC*
- 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 Dexter for details
Description
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 -55°C to +70°C the Ex enclosure is manufactured from GRP with a rugged thermoplastic flare providing a corrosion free and aesthetically pleasing product.