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781 | Breather / Drain Plug Available in brass, nickel plated brass, aluminum, stainless steel & nylon

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781 Breather Plug & Drain Plugs Breather Plug & Drain Plugs, Globally Approved, Explosive Atmosphere Cable / Conduit Accessory

  • 781E for Ex e use
  • 781D for Ex d use
  • Drains equipment susceptible to moisture collection
  • Enables equipment to breathe
  • Nylon Ex e only version available (-4˚F to +140˚F)
  • -76˚C to 392˚F (metallic versions)
  • Globally marked, IECEx, ATEX & cCSAus
  • NPT threads available
Design Specification BS 6121:Part 1:1989
Enclosure Protection IK10 to IEC 62262 (20 joules) Brass & Stainless Steel Only
ATEX Certificate CML 18ATEX1330U
Code of Protection 781D: II 2G Ex db IIC Gb, II 1D Ex ta IIIC Da
781E: II 2G Ex eb IIC Gb, II 1D Ex ta IIIC Da
IECEx Certificate IECEx CML 18.0187U
Code of Protection 781D: Ex db IIC Gb, Ex ta IIIC Da
781E: Ex eb IIC Gb, Ex ta IIIC Da
cCSAus Certificate 1055233
Code of Protection 781D: Ex d IIC, Class I, Zone 1 AEx d IIC; Class I Div 1, Groups A,B,C,D IP66, Enclosure Type 4X
781E: Ex e II, Class I, Zone 1, AEx e II IP66, Enclosure Type 4X
UL Certificate E253914
Code of Protection 781D: Class I, Zone 1, AEx d IIB or IIC; Zone 20, AEx ta IIIC
781E: Class I, Zone 1, AEx e IIC

Certificates

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Product Selection Table

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Ordering Reference
(781D)		Ordering Reference
(781E)		Thread Size
781DT15781ET15½”
781DT25781ET25¾”
781DM15781EM15M20
781DM25781EM25M25
781DT24 (Stainless Steel)781ET24 (Stainless Steel)½”
781DT34 (Stainless Steel)781ET34 (Stainless Steel)¾”
Dimensions displayed in inches unless otherwise stated
Alternative threads available

Technical Illustration