Medc Db4bulg08nn1bnn | Speakers | Class I Div 2 | Gasdetectorsusa
Gas Leak and Flame Detectors, Analyzers, Alarm Devices and Calibration Gas

MEDC   DB4BULG08NN1BNN

SKU# (6348)



MEDC DB4BULG_08N__N1B_NN

ALARM SIGNAL DEVICES / CLASS I DIV 2
SPEAKERS

$724.76  [9 Weeks]
  • DESCRIPTION
  • FEATURES
  • SPECIFICATIONS
  • LITERATURE
MEDC DB4B High Power Explosion Proof 127dB Speaker (up to 25 Watts). Exd/Exd(e), Weatherproof. IP66 and IP67, intended for use in potentially explosive gas and dust atmospheres. Corrosion free. UL Approval for Class I Division 2 Groups A-D.

DB4BULG08NN1BNN   
724.76

Ex Atmosphere
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  [  9 Weeks  ]
251 Variants of base SKU / 30 Shown below

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, 1W @ 1m is 113dB whilst at 1m the 25W unit produces 127dB, the 15W unit 125dB and the 8W unit 123dB.

Options include DC blocking capacitors for monitored systems, resettable fuses for compliance with marine regulations and a swivel bracket that gives the installer greater flexibility when positioning the unit. The short flare option is a worthy addition to the range offering a high SPL and wide dispersion angle in a compact unit.

FEATURES

  • Ex d / Ex de IIC/IIIC T4/T5/T6. Ex d IIC/AEx d IIC Gb.
  • ATEX certified.
  • IECEx certified.
  • UL listed for USA and Canada
    Class I, Div 2, Groups A-D
    Class I, Zone 1, Ex d IICClass II, Div 2, Groups F & G
    Zone 21, AEx tb IIIC
    Class III, Div. 1
  • CUTR certified.
  • CQST certified.
  • Brazilian (Inmetro) certified.
  • Certified temperature -55oC to +70oC.*
  • IP66 & IP67/ NEMA 4X & 6.
  • Optional Ex e terminal chamber.
  • 127dB 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.
  • Stainless steel mounting bracket and cover screws.
  • Mounting bracket has ratchet facility as standard
  • Optional swivel bracket available­.
  • Optional resettable fuse†.

Specification
Certifications: ATEX Ex d Gas:
Cert. no. Baseefa13ATEX0229X. Certified to: EN60079-0,1.
Ex II 2G, Ex d IIC T4/T5/T6 Gb.
ATEX Ex d Gas & Dust: Cert. no. Baseefa13ATEX0231X. Certified to: EN60079-0,1,31.
Ex II 2GD, Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66.
ATEX Ex de Gas:
Cert. no. Baseefa13ATEX0232X. Certified to: EN60079-0,1,7.
Ex II 2G, Ex de IIC T4/T5/T6 Gb.
ATEX Ex de Gas & Dust: Cert. no. Baseefa13ATEX0233X. Certified to: EN60079-0,1,7,31.
Ex II 2GD, Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66.
IECEx Ex d Gas:
Cert. no. IECEx BAS 13.0112X. Certified to: IEC60079-0,1.
Ex d IIC T4/T5/T6 Gb.
IECEx Ex d Gas & Dust: Cert. no. IECEx BAS 13.0113X. Certified to: IEC60079-0,1,31.
Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66.
IECEx Ex de Gas:
Cert. no. IECEx BAS 13.0114X. Certified to: IEC60079-0,1,7.
Ex de IIC T4/T5/T6 Gb.
IECEx Ex de Gas & Dust: Cert. no. IECEx BAS 13.0115X. Certified to: EN60079-0,1,7,31.
Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66.
UL Haz Locs:
UL Listed for USA and Canada, listing no. E203310.
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.
UL Ord Locs:
UL Listed for USA and Canada, listing no. S8847.
CUTR Ex d Gas:
1Ex d IIC T4/T5/T6 Gb.
CUTR Ex d Gas & Dust: 1Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db.
CUTR Ex de Gas:
1Ex de IIC T4/T5/T6 Gb.
CUTR Ex de Gas & Dust: 1Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db.
Russian Fire Approval: All CUTR certified units are Russian Fire Approved.
CQST Ex d Gas:
Ex d IIC T4/T5/T6 Gb.
CQST Ex d Gas & Dust: Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db.
Inmetro Ex d Gas:
Ex d IIC T4/T5/T6 Gb.
Inmetro Ex d Gas & Dust: Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66.
Inmetro Ex de Gas:
Ex de IIC T4/T5/T6 Gb.
/Inmetro Ex de Gas & Dust: Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66.
Material Ex enclosure - Flame retardant, UV stable, Glass reinforced polyester.
Flare - Flame retardant, high impact, UV stable, thermoplastic polyester. (UV stability tested to ISO 4892 part 3).
Hardware - Bracket, fixings and captive cover screws in 316 stainless steel.
Fire Retardancy Body - Glass reinforced polyester. V0 flammability rating.
Outer Flare - Thermoplastic Polyester. V0 flammability rating.
Finish: Body - natural black. Flare - natural black, natural red or painted as specified. (Black short flare painted black).
Rated Power: 8W, 15W or 25W (other ratings available, contact MEDC).
Frequency Range: Frequency response 350Hz to 8kHz.
8W and 15W units are available for use @ 200Hz.
Weight: Ex d/UL - 5.0kg, Ex de - 5.8kg. Based on long flare with transformer.
Ingress Protection: IP66 & IP67, NEMA 4X & 6. (IPx7 & NEMA 6 on terminal chamber only)
Earth Continuity: Optional for Ex de version. Not available on Ex d unit.
Entries: Up to 2 x M20 or 1 / 2 ” NPT. Blanking plug available.
Terminals: Ex d - 8 x 2.5mm2 (4mm2 solid conductor)/ 12AWG. Ex de - 8 x 4.0mm2.
Mounting arrangement: Stainless steel bracket with ratchet facility, optional swivel bracket available.
Labels: Optional duty and tag labels available.
Dispersion angle: Long flare (short in brackets), -6dB, 1kHz = 140o (240o), 4kHz = 40o (50o)
Driver Impedance: 8Ω.
SPL 1W/1m (Sensitivity): 113dB (IIC long flare).
Export Info
Made inUnited Kingdom

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DB4BD_G_08N__N1B_NN
(6347)

MEDC  DB4BDG08NN1BNN

MEDC DB4B High Power Explosion Proof 127dB Speaker (up to 25 Watts). Exd/Exd(e), Weatherproof. IP66 and IP67, intended for use in potentially explosive gas and dust atmospheres. Corrosion free. ATEX, IECEx, Inmetro and CUTR certifications..

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$724.76 
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DB4BULG08NN1BN     $725
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