Description
AUTRONICA
BNB-342/EX
POWERLOOP INPUT UNIT
9212-366.0003
REV. 5
4-20MA 24V
0.205.2011.266.02010
The Autronica BNB-342/EX is a Powerloop Input Unit designed for integration within marine fire alarm and detection systems. Operating on a 4-20mA signal range at 24V, it serves as an interface between field-mounted detectors or sensors and the fire alarm control panel, converting analogue input signals into data that the system can monitor and act upon. Designated with the /EX suffix, this unit is intended for use in hazardous or explosion-risk areas, making it a critical component in fire detection architectures aboard vessels where flammable atmospheres may be present. As part of the Autronica Powerloop ecosystem, it supports reliable, continuous monitoring across shipboard fire alarm infrastructure.
Key Features
✓ Accepts 4-20mA analogue input signals at 24V, enabling connection of a range of analogue sensing devices to the Powerloop fire detection network.
✓ The /EX designation indicates suitability for hazardous area installation — specific certification details are subject to confirmation against the unit’s documentation and revision markings.
✓ Compatible with Autronica Powerloop-based fire alarm systems; panel and controller compatibility should be confirmed against the vessel’s existing system configuration.
✓ Supplied as Revision 5 (REV. 5), ensuring the unit reflects an established and refined iteration of the design — advisable to verify revision compatibility with the installed system version.
✓ Replacement or servicing of this unit supports continued SOLAS-compliant fire detection capability, particularly in machinery spaces, cargo areas, or other designated hazardous zones.
Marine Applications
✓ Tankers and gas carriers where explosion-protected fire detection equipment is required in cargo and pump room areas.
✓ Offshore support vessels and platform supply vessels operating in environments with elevated risk of flammable gas accumulation.
✓ Bulk carriers and general cargo vessels utilising Autronica Powerloop fire alarm systems throughout the accommodation and machinery spaces.
✓ Passenger ferries and RoRo vessels requiring compliant analogue input interfacing within distributed fire detection networks.
✓ Drill ships and FPSOs where robust, hazardous-area-rated fire detection components are essential to operational safety systems.
Why Marine Engineers Choose
The Autronica BNB-342/EX is a trusted component within the Powerloop fire detection architecture, valued for its analogue input capability, hazardous area rating, and compatibility with established Autronica shipboard systems — making it a dependable choice for maintenance and system integrity.
Ideal For
Tankers, gas carriers, offshore vessels, FPSOs, passenger ships, bulk carriers, and any vessel operating Autronica Powerloop fire alarm systems with hazardous area detection requirements.
Technical Support
Technical support is available for the Autronica BNB-342/EX Powerloop Input Unit, covering onboard installation guidance, unit-level fault diagnosis, and remote troubleshooting assistance. Support can be arranged to assist engineers working within Autronica fire alarm systems during planned maintenance or unplanned repair scenarios.
