Hazardous Area Products // Audible & Visual Warning Signals // Combination Units // MEDC CU1 Sounder Beacon Combination Unit

MEDC CU1 Sounder Beacon Combination Unit


Exde, Heavy Duty Industrial & Marine, Weatherproof

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CU1 Range – Combination – Beacon Sounder

This range of beacon/sounder units, intended for use in potentially explosive gas atmospheres, has a sound output of up to 116dB(A) and tube energy of up to 10 joules (beacon). It is suitable for use in the harsh environmental conditions found offshore and onshore in the oil, gas and petrochemical industries.

The flamepaths, flare and body are manufactured from a UV stable glass reinforced polyester. Stainless steel screws and mounting stirrup are incorporated to ensure a corrosion-free product. A tapered flamepath is used to overcome the problems of assembly of parallel spigot flamepaths.


  • Zone 1, Zone 2 & non-Ex use.
  • Ex de IIB T4.
  • ATEX approved, Ex II 2 G.
  • IECEx approved, Gb.
  • CUTR certified.
  • BASEEFA certified.
  • Brazilian (Inmetro) certified.
  • IP66 and 67.
  • Certified temperature: –50ºC to +70ºC*.
  • Up to 116 dB(A)*.
  • Version with independent beacon/sounder operation now available.
  • 27 Tones, user selectable (dual tone option – d.c. voltage).
  • Tones comply with UKOOA/PFEER guidelines.
  • Integral volume control.
  • GRP corrosion-free flamepath.
  • Ratcheted swivel mounting stirrup.
  • Stainless steel fixtures.
  • Tapered flamepath.
    *Model dependent.
Technical Specification
CertificationATEX, IECEx, TR CU, Inmetro, ABS
FlameproofEx II 2G Ex de IIB T4 Gb
Area ClassificationZone 1, Zone 2 & non-Ex use.
Certified Ambient Temperature-50°C to +70°C*
Ingress ProtectionIP66 & 67
MaterialCorrosion-free GRP
EntriesUp to 2 x 25mm
Weight6.5kg approx
OptionsBody & lens colour, tel. initiate, earth continuity,
flash rate, voltages 24V–48V d.c. 110V–254V a.c.

* Model dependant

MEDC CU1 Sounder Beacon Combination Unit Datasheet