Products / Fire Detection Systems / Bosch / Bosch FNM-420U-A-RD Uninterruptible Analog Addressable Indoor Siren, Red
Bosch
Bosch FNM-420U-A-RD Uninterruptible Analog Addressable Indoor Siren, Red
Product Code: FNM-420U-A-RD
This indoor siren with red housing is designed to provide uninterruptible alarm signals on an analog addressable loop. Alerts continue even on lines terminated as stubs, so a single cable fault does not silence an entire floor. Sound pressure reaches up to 101.3 dB(A) and devices synchronize instantly with each other. Its long service life reduces the budget line allocated for siren replacement in maintenance programs.
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Technical specifications
| Architecture | Adresli |
| Operating Voltage | 15 … 33 V DC |
| IP Rating | IP42 |
| Operating Temperature | -20 °C … +70 °C |
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