Description
TYCO
4B-DHM
4” DECKHEAD MOUNTING BASE
517.050.051
The Tyco 4B-DHM is a 4-inch deckhead mounting base designed to provide a secure and reliable fixing point for compatible fire detectors within a marine fire alarm system. Mounted directly to the deckhead (overhead ceiling structure) of a vessel, this base forms an essential part of the detector installation assembly, ensuring correct positioning, stable mechanical support, and consistent electrical connection between the detector head and the alarm loop wiring. Proper deckhead mounting is critical to detector performance and is a fundamental requirement under marine fire detection standards, making components such as this integral to maintaining a compliant and operational fire alarm system onboard.
Key Features
✓ Designed as a 4-inch deckhead mounting base, providing a stable platform for compatible Tyco fire detector heads in overhead installation configurations.
✓ Specific electrical ratings, certifications, and detector head compatibility are subject to confirmation based on the vessel’s installed fire alarm system configuration.
✓ Intended for use within Tyco fire alarm system installations; system panel and loop compatibility should be verified against the vessel’s existing fire detection network.
✓ Suited for deckhead mounting across various onboard spaces including machinery spaces, accommodation areas, and cargo zones where fire detection coverage is required.
✓ As a mechanical base component, it supports straightforward detector head replacement and maintenance without disturbing the fixed wiring, aiding efficient service operations.
Marine Applications
✓ Merchant vessels including bulk carriers, tankers, and container ships requiring SOLAS-compliant fire detection coverage throughout accommodation and technical spaces.
✓ Offshore platforms and support vessels where reliable fire alarm infrastructure is mandated by class and flag state regulations.
✓ Passenger ferries and cruise ships where high-density detector installations demand secure and consistent deckhead mounting solutions.
✓ Naval and government vessels operating fire alarm systems that require robust, purpose-designed mounting hardware for detector assemblies.
✓ Any vessel undergoing fire alarm system retrofit, upgrade, or routine detector replacement where the original mounting base requires renewal.
Why Marine Engineers Choose
Marine engineers and vessel operators specify the Tyco 4B-DHM mounting base because it ensures the mechanical integrity and correct orientation of fire detector heads, reducing the risk of installation errors and supporting dependable long-term performance within the fire alarm system.
Ideal For
Suitable for commercial shipping fleets, offshore operators, ferry operators, shipyards, and vessel management companies maintaining or upgrading Tyco fire alarm systems across a wide range of vessel types and trades.
Technical Support
Technical support is available for this fire alarm system component, covering onboard installation guidance, integration with existing detector loops, and remote troubleshooting assistance. Contact our team for help identifying compatibility with your installed system configuration.
