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  • 產(chǎn)品名稱:DB4揚(yáng)聲器

  • 產(chǎn)品型號(hào):DB4揚(yáng)聲器
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DB4揚(yáng)聲器 DB4揚(yáng)聲器供潛在爆炸性氣體和塵埃的環(huán)境中使用,25 瓦的額定功率和是適用于所有燃?xì)饧悇e包括氫。Flamepaths,flare、 殼體,是完全由紫外線穩(wěn)定玻璃纖維增強(qiáng)聚酯生產(chǎn)的。不銹鋼螺釘和燒結(jié)礦防止設(shè)備被腐蝕
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DB4揚(yáng)聲器
DB4揚(yáng)聲器供潛在爆炸性氣體和塵埃的環(huán)境中使用,25 瓦的額定功率和是適用于所有燃?xì)饧悇e包括氫。Flamepaths,flare、 殼體,是完全由紫外線穩(wěn)定玻璃纖維增強(qiáng)聚酯生產(chǎn)的。不銹鋼螺釘和燒結(jié)礦防止設(shè)備被腐蝕

DB4 explosionproof horn loudspeaker for hazardous areas

This range of loudspeakers, intended for use in potentially explosive gas and dust atmospheres, has a power rating of up to 25 watts and is suitable for use in all gas groups including hydrogen.

The flamepaths, flare and the body, are manufactured completely from a UV stable glass reinforced polyester. Stainless steel screws and sinter are incorporated thus ensuring a corrosion free product. A tapered flamepath is used to overcome the problems of assembly of parallel spigot flamepaths.

An optional Exe terminal chamber is available.

An uncertified version is available for use in non-explosive atmospheres.

Models compliant to BS 5839, part 8 are available.

Download DB4 datasheet
Download DB4 North American datasheet

Features

  • Zone 1, Zone 2 & non-Ex use.
  • UL listed for USA and Canada:
    • Class I, Div 2, Groups A-D.
    • Class I, Zones 1 & 2, AExd IIC, T4.
  • Exd IIC T4/T5.
  • ATEX approved, Ex II 2GD.
  • BASEEFA certified.
  • GOST ‘R’ & ‘K’ certified.
  • Australian (SAA) certified.
  • Brazilian (Inmetro) certified.
  • Optional Exe terminal chamber.
  • IP66, IP67, NEMA 4x & 6.
  • Certified temperature:
    • –55°C to +70°C*.
    • –67°F to +158°F*.
  • GRP corrosion-free flamepaths.
  • 119dBA at 25 watts at 1 metre.
  • 8, 15, 20 and 25 watt versions.
  • BS 5839, part 8 compliant versions available.
  • Addressable capability.
  • Power tappings, via integral transformer.
  • Ratcheted swivel bracket.
  • Stainless steel sinter.
  • Stainless steel mounting bracket.
  • Tapered flamepath.
  • Line and 8Ω versions available.

*Depending on version.

Certification ATEX, UL, GOST R & K, Inmetro
Flameproof ATEX Ex II 2GD, Exd(e) IIC T4/T5
Ambient Operating Temperature

-55°C to +70°C (low temp unit)

-20°C to +70°C (standard)

Ingress Protection IP66 & IP67
Material Corrosion-free GRP
Output 107 dBA at 1W at 1 metre
  119 dBA at 25W at 1 metre
Entries Up to 2 x 20mm
Weight 5kg
Tappings 25, 12.5, 6, 4, 2, 1
Options Power (8W, 15W, 20W, 25W), body colour,
  Tag & duty labels, certification,
  BS5839, part 8 compliance,
  Terminal chamber, transformer voltage

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