Description
AUTRONICA
BF-501/EX
MANUAL CALL POINT
UI=15.75V LI=63.5MA CI=21.6NF
TA=70C
CONTROL DRWG: BZ-091
E-2975
The Autronica BF-501/EX is an explosion-protected manual call point designed for use within marine fire alarm systems aboard commercial and industrial vessels. As a manual initiating device, it allows crew members to trigger a fire alarm signal directly at the point of detection, forming a critical link in the vessel’s emergency response chain. The /EX designation indicates suitability for installation in hazardous or classified areas, making it appropriate for spaces where flammable atmospheres may be present. This component plays an essential role in ensuring SOLAS-compliant fire detection and alarm coverage across the ship.
Key Features
✓ Manual call point function enabling direct crew-initiated fire alarm activation within the fire alarm loop circuit.
✓ Rated operating parameters: input voltage UI=15.75V, loop current LI=63.5mA, capacitance CI=21.6nF, and maximum ambient temperature TA=70°C as specified on the unit.
✓ /EX-rated construction suitable for installation in hazardous classified zones where ignition risk from flammable gases or vapours must be controlled.
✓ Designed for integration with Autronica fire detection systems; panel and loop compatibility subject to confirmation against vessel-specific configuration and control drawing BZ-091.
✓ Replacement and maintenance planning should reference the original control drawing and system documentation to ensure correct loop addressing and installation compliance.
Marine Applications
✓ Cargo vessels and tankers requiring manual call points in hazardous or potentially explosive atmosphere zones such as pump rooms and cargo spaces.
✓ Offshore support vessels and platform supply vessels with fire alarm systems installed in classified areas subject to gas or vapour exposure.
✓ Chemical tankers and gas carriers where /EX-rated fire detection equipment is mandated by classification society rules and flag state requirements.
✓ Engine rooms, machinery spaces, and enclosed working areas aboard vessels operating Autronica-based fire detection and alarm systems.
✓ Retrofit and like-for-like replacement projects on existing Autronica fire alarm installations requiring certified manual initiating devices.
Why Marine Engineers Choose
Marine engineers specify the Autronica BF-501/EX for its reliable manual initiation capability, hazardous area rating, and compatibility with established Autronica fire alarm infrastructure — providing confidence in safety-critical applications where performance and traceability matter.
Ideal For
Tankers, chemical carriers, gas carriers, offshore support vessels, cargo ships, and any vessel type operating Autronica fire alarm systems with hazardous area coverage requirements.
Technical Support
Technical support is available for the Autronica BF-501/EX manual call point, covering onboard installation guidance, system integration, and remote troubleshooting assistance. Support can be provided for repair assessment and loop configuration queries related to Autronica fire alarm systems.
