CEAG eLLB20 Hazardous Area Recessed Mount Fluorescent Light Fixtures
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CEAG eLLB20 Hazardous Area Recessed Mount Fluorescent Light Fixtures

Crouse-Hinds series eLLB20 recessed mount linear fluorescent fixtures are used for flush or surface ceiling mounting in areas with tough environmental conditions involving corrosives, water, dust and extreme temperatures.  

The fixture is globally certified for use in NEC Division and IEC Zone hazardous areas.

Constructed from sheet steel or stainless steel, the eLLB20 linear fluorescent is an excellent option for applications where extreme cleanliness is required as in pharmaceutical, chemical and electronics manufacturing facilities.

Certifications and compliances

NEC (202217 and 204232 models)

  • Class I, Division 2, Groups A, B, C, D
  • Class I, Zone 1, AEx ed IIC
  • Class II, Division 2, Groups F, G
  • UL Listed

UL standards (202217 and 204232 models)

  • UL844 – Hazardous (Classified) Locations
  • UL1598 – Luminaires

CEC (202217 and 204232 models)

  • Class I, Division 2, Groups A, B, C, D
  • Class I, Zone 1, Ex eds IIC
  • Class II, Division 1, Groups E, F, G
  • cUL Listed

CSA standards (202217 and 204232 models)

  • C22.2 No. 9
  • CAN/CSA-E60079-0:02
  • CAN/CSA-E60079-1:02
  • CAN/CSA-E60079-7
  • CAN/CSA-E61241-1-1:02


  • Type 4X
  • IP66


  • EC-Type Examination Certificate – DMT 02 ATEX E 069
  • IECEx Certificate of Conformity – IECEx-BVS14.0091
  • Marking accd. to 2014/34/EU – Ex II 2 G Ex d e mb IIC T4 Gb; Ex II 2 D tb IIIC T80°C Db
  • Marking accd. to IECEx – Ex d e mb IIC T 4 Gb; Ex tb IIIC T 80°C Db
  • Permissible ambient temperature -25°C up to +50°C

Design features

  • One-piece welded housing with fitted cover frame; the cover frame is an integral part of the housing to seal out dust and moisture
  • Adjustable mounting clamps: permanently attached and adjustable through the cover frame for easy installation; allow recess mounting in ceilings from 25mm to 100mm (1" to 4" approximately) thick for maximum mounting flexibility
  • Support lugs (M8 x 0.6) to secure the luminaire to ceiling structural support members for safety
  • Frameless tempered glass lens: 6mm (1/4") thick for added safety; interior hinge for maximum dust shedding; fitted with captive screws for ease of lamp replacement and maintenance
  • Isolating switch turns off power to the ballast and lamps when the lens is opened for added safety 
  • Four entries (two on each end) supplied with (2) 3/4" NPT adapter hubs and extra large wire well for through feed and tandem applications without the need for separate junction boxes
  • Electronic ballast: high power factor (95%) for energy efficiency, more luminaires per circuit and supply voltage flexibility; features two channel circuitry for safety – if one lamp fails, the second lamp remains in operation
  • Uses T8 linear fluorescent lamps for high efficiency and reduced operating costs
  • 5-wire terminal block and through wiring are standard for quick and easy balancing of lighting loads on 3-phase systems

Standard materials

  • One-piece welded housing and cover frame – sheet steel with white epoxy coat or stainless steel
  • Lens – 6mm (1/4") thick tempered clear glass
  • Gasket – silicone rubber
  • External hardware – stainless steel