Siemens FDBZ492-RTL fire detection base with remote alarm indicator for duct-mount smoke detection.

Compliance

• FM Approved
• CSFM

Key features

• Duct detector base with integrated remote test and alarm indicator (RTL) capability for HVAC applications
• Remote alarm indicator allows visual alarm status confirmation at the duct housing from outside the air handler
• Velocity range 100–4,000 ft/min for standard commercial HVAC air-handling systems
• Humidity range 0–95% non-condensing for reliable performance across commercial building duct environments
• Compatible with Siemens FDOOT-family addressable detector heads for SLC integration

The FDBZ492-RTL is a Siemens duct fire detection base that combines the standard duct housing function with an integrated remote test and indicator LED (RTL). The remote indicator allows maintenance personnel to verify alarm status from an accessible location outside the air-handling unit without opening ductwork panels. This base is used with Siemens Cerberus PRO and FireFinder XLS addressable systems in commercial HVAC fire protection applications.

Verify panel/device family compatibility before ordering.