The TYCO 5B-UL (517.050.019) is a 5-inch universal detector base designed for compatible TYCO/Thorn fire detectors. It is commonly used with TYCO MX addressable detectors, Minerva M900 addressable detectors and Series 600 conventional detectors, and the UL version is intended for UL-approved applications.
Key Features
- 5-inch universal detector base for compatible TYCO detectors.
- Supports connection to a remote LED indicator.
- Detector locking pin supplied with the base.
- Includes a temporary park position, useful during installation and testing.
- Accepts an address-label flag from compatible MX detectors.
- Can be fitted directly to British or European conduit boxes.
- Can also be mounted directly to the ceiling.
- Break-outs for surface cable installation are provided.
- Suitable for use with TYCO MX detector ranges and compatible Minerva/Series 600 detectors.
- For humid or environmentally challenging applications, the DHM-5B deckhead mounting can be used with the appropriate base arrangement.
Typical Applications
- TYCO MX/MZX fire detection systems
- Minerva M900 addressable fire alarm systems
- TYCO Series 600 conventional detectors
- Marine and offshore fire detection installations
- Industrial and commercial fire alarm systems
- Detector replacement and maintenance projects
- Installations requiring a UL-approved 5″ universal detector base.





