PESO & CIMFR Certified · OISD-117 Compliant · Made in India · +91 89895 67878
Hazardous Area Sirens

Flameproof Siren — PESO & CIMFR Certified Zone 1 & Zone 2

Genuine PESO and CIMFR certified flameproof sirens for petroleum refineries, paint booths, chemical plants, and gas storage areas. Ex d IIC T6. Copper-free cast aluminium. 24V DC, 230V AC, and 415V AC supply variants.

PESO CertifiedCIMFR CertifiedZone 1 & Zone 2Ex d IIC T6IP5524V DC · 230V AC · 415V AC
PESO and CIMFR certified flameproof siren — Zone 1 and Zone 2 hazardous areas, Ex d IIC T6, petroleum refinery, India
Certification
PESO & CIMFR — supplied with unit
Zone
Zone 1 & Zone 2 (IEC 60079)
Ex rating
Ex d IIC T6
Power supply
24V DC / 230V AC / 415V AC
Output
105–115 dB at 1 metre
Enclosure
Copper-free cast aluminium, IP55
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The only siren legal for hazardous areas

PESO & CIMFR certified. Zone 1 and Zone 2. Ex d IIC T6.

If your facility handles petroleum products, gases, solvents, explosive dust, or any flammable substance — and you need a siren or alarm inside or adjacent to that area — a standard motor siren or electronic hooter is not permitted. The siren must be certified flameproof (Ex d) by an Indian statutory body.

Our flameproof sirens carry both PESO (Petroleum and Explosives Safety Organisation) and CIMFR (Central Institute of Mining and Fuel Research) certification — the two certifications required by Indian hazardous area regulations. Certificate copies are supplied with every unit.

Compliance note

If an inspector finds a non-certified siren in a hazardous area, the unit will be condemned and may trigger a shutdown of the area. Do not install standard sirens in Zone 1 or Zone 2 areas.

Do you need a flameproof siren?

Required when:

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Zone 1 hazardous areaLocations where flammable gas or vapour is likely to be present during normal operations — pump rooms, compressor houses, loading/unloading areas, solvent storage, paint booths.
✓
Zone 2 hazardous areaLocations where flammable atmosphere is not likely in normal operation but may occur in abnormal conditions — areas adjacent to Zone 1, dyked enclosures, tanker loading bays.
✓
Petroleum refinery or terminalOISD-117 and ERDMP both specify Ex-certified sirens for fire and emergency alerting in petroleum handling facilities. Statutory requirement, not optional.
✓
Chemical plant or pharmaceuticalSites handling solvents, reactants, or intermediates with flash points below 60°C typically classify process areas as Zone 1 or Zone 2 under IS 5572.
✓
Coal mines and explosive manufacturingGroup IIC classification covers hydrogen and acetylene atmospheres — the most ignition-sensitive. Our units are rated IIC — the highest group, covering all lower groups.
Understanding the certification marks

What Ex d IIC T6 means for your application

MarkMeaningYour application
ExExplosive atmosphere protection certifiedRequired for any electrical equipment in Zone 1/2
dFlameproof enclosure — contains any internal ignitionFlame cannot propagate outside the enclosure
IISurface industry (not mining)Petroleum, chemical, pharmaceutical, ports
CGas group IIC — hydrogen and acetyleneCovers all lower groups (IIA, IIB) automatically
T6Max surface temperature 85°CSafe for gases with autoignition above 85°C
IP55Dust tight, jet-proofOutdoor installation, washdown areas

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Buyers ask us

Questions before ordering a flameproof siren

Can I wire this to my fire panel?
Yes. The siren accepts a potential-free contact input — connect the fire panel's alarm relay output directly. No additional relay or interface module required for most fire panels.

Need a PESO/CIMFR certified flameproof siren?

Share your zone classification, gas group, and cable entry size. We confirm the Ex d variant and supply test certificates.

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Also see: Motor Driven Siren → Automatic Controller → Distributed System →
📄 PESO/CIMFR certificate details, dimensions & wiring →
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