Siemens FDBZ492-RP


Duct Housing-4 Wr w/Rly And Built-In Pwr Source

Availability: Estimated 6 Weeks

Condition: New
Brand: Siemens
Status: Active
SKU: 72167
Manufacturer Part #: FDBZ492-RP
Secondary Part #: S54319-B25-A1


The Siemens ─ Fire Safety Model ‘FDBZ’-series of air-duct-detector housings are designed for use with Siemens Model ‘H’-series, ‘FD’-series and Model OP121 detectors. (see: Details for Ordering for a complete list of compatible devices). Designed for installation directly to heating, ventilating and air-conditioning (HVAC) duct systems, the Model ‘FDBZ’-series of duct housings complies with National Fire Protection Association Standard (NFPA) No.’s 72 and 90A, and is Underwriters’ Laboratories Listed. When equipped, the air-duct detector housing will signal the presence of smoke being carried through the duct system. Air-duct detectors are not intended to be substituted for open-area detection.

Additional information

Weight 4 lbs

Siemens Industry, Inc.




Unit of Measurement

EA (Each)

Production Status



  • Four (4) models available
  • Addressable and conventional with and without relays
  • Compatible with Siemens ─ Fire Safety conventional and addressable fire alarm control panels (FACPs)
  • Magnet test feature with the Model OP121 conventional detector
  • Design for air-velocity range of 100 to 4,000 feet-per-minute (fpm)
  • Robust, compatible conventional remote indicator test switch that incorporates tri-color light-emitting diode (LED)
  • Clear housing cover with smoke test port on cover for quick identification of detector type
  • Removable via four (4) captive-thumb screws (no tools required)
  • Includes a smoke / aerosol detector test port
  • Optional NEMA 4X-reinforced, stainless steel and watertight enclosure available, Model FDBZ-WT
  • No tools required for cover removal, sampling and exhaust-tube installations
  • Trouble-event activation upon front cover removal
  • Alarm LED visible from front
  • Self-contained model available with ‘onboard’ power supply for conventional detectors
  • Expanded temperature range
  • Relay models available
  • UL268A Listed, ULC-S529 Listed
  • FM (#3010), CSFM (#3240-0067:0265) Approved


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