Description
AUTRONICA
BZB-500
INTERFACE UNIT
NEMKO 03 ATEX 230, IECEX NEM 11.0008
||(1)G [EX IA GA] || C
24V, AL_COM AND BARR, SAFE: UM=250V
BARR.EX: UI=28V, II=93MA, PI=0.65W
AL_COM EX: UO=15.75V, LO=63.5MA
PO=0.44W, CO=0.48UF, LO=1.28MH
BATCH NO: 14/11
E-2489E
The Autronica BZB-500 is an intrinsically safe interface unit designed for integration within marine fire alarm systems. It functions as a galvanic barrier and alarm communication module, providing a certified safe interface between hazardous and non-hazardous areas of the vessel. Operating at 24V with defined barrier and alarm communication parameters as stated in its ATEX and IECEx certifications, this unit plays a critical role in maintaining the integrity and reliability of fire detection circuits in explosive atmosphere zones. Its certification to NEMKO 03 ATEX 230 and IECEx NEM 11.0008 makes it suitable for use in gas-risk areas aboard ships and offshore units.
Key Features
✓ Certified intrinsically safe interface unit with ATEX and IECEx approval (NEMKO 03 ATEX 230, IECEx NEM 11.0008), rated for Category G explosive atmospheres – [Ex ia Ga].
✓ Defined electrical parameters: barrier side UI=28V, II=93mA, PI=0.65W; alarm communication output UO=15.75V, IO=63.5mA, PO=0.44W, with capacitance and inductance limits as per original labelling.
✓ Designed for compatibility within the Autronica fire alarm system range; system panel and controller compatibility subject to confirmation based on vessel configuration.
✓ Suitable for installation in hazardous area locations onboard, providing the safe separation required between intrinsically safe field circuits and associated fire alarm control equipment.
✓ As a certified fire alarm component, this unit supports SOLAS-relevant fire detection infrastructure; replacement or installation should follow applicable class and flag state requirements.
Marine Applications
✓ Tankers and gas carriers where fire detection circuits must interface with hazardous cargo or machinery spaces classified as explosive atmosphere zones.
✓ Offshore support vessels and platform supply vessels requiring ATEX-rated fire alarm interface equipment for gas-risk areas.
✓ Passenger ferries and cruise ships utilising Autronica fire alarm systems where intrinsic safety barriers are required in designated hazardous locations.
✓ Bulk carriers and general cargo vessels with enclosed machinery spaces or pump rooms requiring certified safe interface modules.
✓ Drillships and FPSOs where integrated fire & gas detection systems demand approved intrinsically safe communication interfaces between field devices and control panels.
Why Marine Engineers Choose
The Autronica BZB-500 is valued for its dual certification under both ATEX and IECEx frameworks, making it a trusted solution for maintaining safe and compliant fire alarm communication circuits in hazardous shipboard environments without compromising system performance.
Ideal For
Tankers, gas carriers, offshore vessels, FPSOs, drillships, passenger vessels, and any ship type operating Autronica fire alarm systems with hazardous area detection requirements.
Technical Support
Technical support is available for the Autronica BZB-500 Interface Unit, covering onboard installation guidance, system integration, and remote troubleshooting assistance. Support extends to fault diagnosis and repair considerations for fire alarm system maintenance.
