Products / Fire Detection Systems / Bosch / Bosch FNM-420U-A-BSRD Uninterruptible Analog Addressable Base Siren, Red, With Cover
Bosch
Bosch FNM-420U-A-BSRD Uninterruptible Analog Addressable Base Siren, Red, With Cover
Product Code: FNM-420U-A-BSRD
The red base siren is an addressable product that combines a detector base with a warning device in one piece. Its delivery with a cover allows installation of an independent siren point without a detector attached. Its uninterruptible architecture and 2.6 Ah battery ensure the alert continues even when loop power is interrupted. Thanks to color differentiation, maintenance staff can distinguish which base contains a siren by looking at the ceiling.
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Technical specifications
| Architecture | Adresli |
| Protocol | LSN |
| Operating Voltage | 15 … 33 V DC |
| IP Rating | IP42 |
| Operating Temperature | -20 °C … +70 °C |
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