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Standard enclosures and junction boxes

EJBA IEC Ex d Explosion Protected Enclosures

Crouse-Hinds series EJBA enclosures provide IEC Ex d flameproof protection in Zones 1, 2, 21 and 22 hazardous areas.  EJBA enclosures are used as terminal boxes or bus bar systems, as junction boxes with terminals, as enclosures for equipment such as control devices, relays, contactors and/or instruments.

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Certifications and compliances

IEC

  • Type of protection: Exd
  • Gas group: IIB or IIB + H2
  • Approvals: ANZEx 06.3018X 
  • Degree of protection: IP66

Design features

  • External flange with machined joint cover opening provides maximum opening for pulling cables or mounting equipment
  • Body walls have sufficient thickness to allow for drilled and tapped entries
  • Special one-piece hollow neoprene gasket designed to fully compress to ensure metal-to-metal contact of cover and body for explosionproof integrity, while giving an IP66 weatherproof seal to AS1939
  • The sealing gasket is placed inward from the cover bolt holes to prevent moisture ingress
  • Hinges provide convenient and easy access for inspection, maintenance and systems changes; integral cast hinges are fitted as standard on EJBA464, EJBA783 and EJBA786; aluminum hinges are also provided as standard on EJBA211710 up to EJBA361810; optional stainless steel hinges are available for sizes EJBA886 up to EJBA161608 
  • Entries can be drilled and tapped to customer requirements

Standard materials

  • Bodies and covers – cast copper-free aluminum
Specifications

Ordering information

  Nominal Inside Dimensions (mm)    
Catalog Number Width Height Depth Gas Group Mounting Plate Catalog Number
EJBA464 150 100 100 IIB MP0406
EJBA783 200 170 70 IIB or IIC (H2) MP0708
EJBA786 200 170 140 IIB or IIC (H2) MP0708
EJBA886 200 200 150 IIB or IIC (H2) MP0808
EJBA1286 200 300 150 IIB or IIC (H2) MP1208
EJBA9166 228 400 150 IIB or IIC (H2) MP0916
EJBA121208 300 300 200 IIB or IIC (H2) MP1212
EJBA161608 400 400 200 IIB or IIC (H2) MP1616
EJBA211710 440 545 255 IIB or IIC (H2) MP2117
EJBA241810 450 600 255 IIB or IIC (H2) MP2418
EJBA242410 600 600 255 IIB or IIC (H2) MP2424
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