Siemens (Pyro) SLFSSWR-F
Siemens (Pyro) SLFSSWR-F
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The Siemens (Pyrotronics) SLFSSWR-F is a wall-mount, red, low-frequency sounder-strobe from the SL-series, built to meet NFPA 72's 520Hz low-frequency sounder requirement for recognized sleeping areas. The strobe portion uses power-saving LED technology and offers multiple candela settings on one appliance, while the sounder supports three signaling modes for combined fire and CO notification in the same device.
Key Features
- 520Hz low-frequency sounder tone for sleeping-area compliance
- Multi-candela LED strobe: 15, 30, 75, and 110 cd on one appliance
- Three operating modes: T3 Fire, T4 CO, and continuous coded dual-sync for Fire and CO
Technical Specifications
- Mounting: Indoor, wall-mount
- Voltage: 24VDC
- Strobe pulse duration meets the 2016 edition of NFPA 72 (20ms)
Certifications
- ADA, RoHS, and ICES compliant

