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SM87 explosionproof 5 joule beacon / strobe for hazardous areas

These certified beacons have been designed for use in harsh environmental conditions. The stainless steel or marine grade alloy 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.

LED version available, offering extended lifetimes.

A high temperature version is available – contact MEDC for details.

Data Sheets
SM87HXB (285 KB) (PDF)
SM87HXB North American (619 KB) (PDF)
Product Certificates
UL (178 KB) (PDF)
TR CU 020/2011 (EMC) (398 KB) (PDF)
Inmetro BR-Ex d IIC (823 KB) (PDF)
CSA (75 KB) (PDF)
IP66 Certificate (74 KB) (PDF)
CQST Ex d IIC (2 MB) (PDF)
INMETRO (TM345) (491 KB) (PDF)
SIL 2 (26 KB) (PDF)
TR CU 037/2016 (RoHS) (388 KB) (PDF)
Product Certificates – External Link
SM87 Beacon Range IECEx
Schematics / Wiring
Ex d Schematic (80 KB) (PDF)
UL Schematic (75 KB) (PDF)
Technical Manuals
Exd (TM001) (1 MB) (PDF)
UL (TM108) (165 KB) (PDF)
Certification ATEX, IECEx, UL, CSA, TR CU, CQST, Inmetro
Flameproof ATEX Ex II 2GD, Exd(e) IIC T4 &T6
Area Classification Zone 1 and Zone 2 use
Certified Ambient Temperature -55°C to +70°C (Exd)
Ingress Protection IP66 & 67
Material Stainless Steel or Alloy
Entries Up to 4 x 20mm or 25mm (NPT for UL)
Weight Alloy: 2kg (approx.)
Stainless Steel: 3.8kg (approx.)
Options Body & lens colour, EOL resistor, tel. & relay initiate,
lens guard, tag or duty labels, flash rate,
high temp. version (-40°C to +85°C) available,
voltages 24-48V d.c., 110-254V a.c.



  • Zone 1 and Zone 2 use.
  • UL Listed for USA and Canada:
    • Class I, Div. 1, Groups C & D.
    • Class I, Zone 1 AExd IIB.
  • Exd IICT4/T5/T6.
  • ATEX approved Ex II 2GD.
  • BASEEFA Certified.
  • CSA Certified.
  • IECEx certified.
  • TR CU Certified*.
  • Chinese (CQST) Certified.
  • Brazilian (Inmetro) Certified.
  • IP66 and IP67.
  • Certified temperature: –55°C to +70°C*.
  • High temperature version (up to 85°C) available.
  • Stainless steel or marine grade alloy.
  • Xenon or LED versions.
  • Various lens colours.
  • Optional lens guard.
  • Telephone or relay initiated*.

*Depending on version.