The Tyco 4B-C 517.050.042 is a continuity base, used in installations that involve Tyco 850 Series Detectors. The Tyco 4B-C allows the built-in short circuit isolation function of the detector to be in-circuit when the detector is fitted and ensures that the continuity is maintained when the detector is removed. The Tyco 4B-C 517.050-042 is compatible with the Ceiling Tile Adapter, potentially decreasing installation time by up to 30%.
The Tyco 4B-C 517.050.042 is designed to snap-fit into the Ceiling Tile Adaptor. The base can also be screw fixed to a ceiling, electrical box, or deckhead mount in the traditional manner. A park position allows the detector to be mechanically attached to the 4B-C without making electrical connections to facilitate the testing of electronic-free bases. The base should be fixed with the park plunger faced towards the door or trafficable area. This ensures that the LED will be visible from the direction of entry, AS1670.1-2004.
With a detector mounted in the Tyco 4B-C Base, a raised rib on both the base and detector align when the detector is in the fully home position.
Continuity, Isolator and Universal variants
Quick and easy to install
Compatible with 800, 814, and 850 Series detectors
Park position for testing
Optional detector locking device
Slim 4-inch profile
Snap-fit to Ceiling Tile Adaptor