Description
AUTRONICA
BDH-500/N
HEAT DETECTOR HEAD
PN: 0002200735200593
SW:2-30
EN54-5
TA=70C
2000
IP44D
0883-CPD-014
The Autronica BDH-500/N is a fixed-temperature heat detector head designed for use within marine fire alarm and detection systems. As a core sensing component, it monitors ambient temperature conditions and triggers an alarm response when a defined threshold is reached. Rated to a maximum ambient temperature of 70°C and carrying EN54-5 certification, this detector is built to meet the demanding requirements of shipboard fire detection, where reliable early warning is essential for crew safety and regulatory compliance. It forms part of the wider Autronica fire alarm system infrastructure used across commercial and working vessels worldwide.
Key Features
✓ Fixed-temperature heat detection function with a maximum ambient rating of TA=70°C, as stated in product data.
✓ Certified to EN54-5 standard for heat alarm devices, with certification reference 0883-CPD-014 confirming compliance at time of manufacture.
✓ IP44D ingress protection rating, providing resistance to solid particles and water splashing — suitable for typical shipboard environments subject to moisture and vibration.
✓ Designed for integration within Autronica fire detection systems; compatibility with specific panels or loops is subject to confirmation based on vessel configuration and software version (SW:2-30 noted).
✓ Detector head format supports straightforward field replacement within existing base assemblies, minimising system downtime during planned maintenance or fault rectification onboard.
Marine Applications
✓ Engine rooms and machinery spaces aboard merchant vessels, where heat-based detection complements smoke detection in high-temperature or oil-mist-prone environments.
✓ Cargo vessels, bulk carriers, and tankers requiring EN54-compliant fire detection as part of SOLAS fire safety arrangements.
✓ Accommodation and service spaces on ferries, cruise ships, and offshore support vessels where zoned fire alarm coverage is mandated.
✓ Autronica fire alarm system installations across naval auxiliaries, research vessels, and workboats requiring OEM-specified detector components.
✓ Retrofit and maintenance programmes where individual detector heads require replacement as part of scheduled fire system servicing or survey preparation.
Why Marine Engineers Choose
The Autronica BDH-500/N is a well-established detector head within the Autronica fire detection platform, valued for its certified performance, robust ingress protection, and compatibility with existing system infrastructure — making it a practical choice for maintenance teams managing fire safety compliance at sea.
Ideal For
Merchant cargo vessels, tankers, bulk carriers, ferries, offshore support vessels, cruise ships, and any commercial or working vessel operating an Autronica fire alarm system requiring certified heat detection components.
Technical Support
Technical support is available for the Autronica BDH-500/N and associated fire alarm system components. Assistance covers onboard installation guidance, fault diagnosis, and remote troubleshooting to help keep fire detection systems fully operational.




