The detector bases are low-profile, surface-mounting bases used on various Siemens ─ Fire Safety conventional and addressable detectors. Model DB-11 has a 6-inch (15.2 cm) diameter. The diameter for Model DB-11E is 4.5 inches (11.4 cm). Moreover, Models DB-11 and DB-11E mount on a 4’’-square, (10.2 cm) octagon or single-gang box. Model DB-11 has integral, decorative plugs to cover the outer screw holes.

* Each detector base is compatible with Model ‘H’, “11” and “121” series of conventional detectors
* Each detector base also functions with the addressable Model ‘H’ series, as well as Models FD0421, FDOT421, FDOOT441, FDOOTC441 and FDT421 intelligent devices
* Models DB-11 and DB-11E amount on a 4-inch square, octagon or single-gang electrical box
* Model DB2-HR mounts on a 4″-square, double-gang electrical box
* UL 268 Listed, ULC-S529 Listed; FM, CSFM and NYC Fire Department Approved

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