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XB4 explosionproof 21 joule beacon / strobe for hazardous areas

These high output (21 Joule) beacons have been designed for use in potentially explosive atmospheres and harsh environmental conditions. The marine grade alloy or stainless steel enclosures are suitable for use offshore or onshore, where light weight combined with corrosion resistance and strength is required. Units can be painted to customer specification and fitted with identification labels.

Available with optional Exe terminal chamber.

Data Sheets
XB4 (661 KB) (PDF)
XB4 North American (320 KB) (PDF)
Product Certificates
ATEX Exd(e) IIC (3 MB) (PDF)
UL (401 KB) (PDF)
TR CU Ex d IIC (2 MB) (PDF)
TR CU EMC (404 KB) (PDF)
CCOE (555 KB) (PDF)
TR EAEU 037 (388 KB) (PDF)
Product Certificates – External Link
Schematics / Wiring
Exd(e) Schematic (71 KB) (PDF)
UL Schematic (66 KB) (PDF)
ULC Schematic (150 KB) (PDF)
Exd Wiring (188-165) (29 KB) (PDF)
Technical Manuals
Exd(e) (TM148) (1 MB) (PDF)
UL (TM115) (20 KB) (PDF)

ATEX, IECEx, UL, TR CU, Russian Fire Approval

Flameproof ATEX Ex II 2G, Exd(e) IIC T4 T5 T6
Area Classification Zone 1 and Zone 2 use.
Certified Ambient Temperature -55°C to +70°C
Ingress Protection IP66 & 67
Material Stainless Steel or Alloy
Entries Up to 4 x 20mm or 25mm*
Weight Alloy: 6.6-7.6kg
Stainless Steel:15-16kg
Options Body & lens colour, lens guard, tag & duty labels,
terminal chamber, initiation options, flash rate,
voltages 24-48V d.c., 110-254V a.c.

*Model dependent


  • Zone 1 and Zone 2 use.
  • UL Listed for USA and Canada
    • – Hazardous locations:
    • Class I, Div 1, Groups C & D.
    • Class I, Zone 1, AExd IIB T4.
    • Ordinary locations: Visual-Signal Device.
  • Exde IICT5.
  • ATEX approved Ex II 2GD.
  • BASEEFA certified.
  • TR CU certified.
  • Certified temperature: –55°C to +70°C*.
  • IP66 and IP67.
  • Stainless steel or marine grade alloy.
  • Various lens colours.
  • Twin replaceable tubes.
  • Exde version has gland earth continuity in the
  • GRP terminal chamber.
  • Tapered spigot flamepath.
  • Telephone or relay initiated option.
  • Optional lens guard.

*Depending on version.