Siemens FDA221 Cerberus PRO Aspirating Smoke Detector (ASD), up to 500 m²
A very early warning aspirating smoke detector with dual wavelength (blue and infrared) detection, for small business-critical rooms up to 500 m².
Dealer for SiemensSiemens FDA241 Cerberus PRO Aspirating Smoke Detector (ASD), up to 800 m²
The larger-area version of the FDA221, a dual wavelength aspirating smoke detector for business-critical rooms up to 800 m².
- Area up to 800 m²
- Dual wavelength (blue and infrared) light scattering detection
- Talks on FDnet or C-NET loops with the optional FDCC221S interface
- DC 19 to 30 V; 150 mA nominal, 250 mA in alarm
- Operating temperature -20 to 60 °C; IP30; 155 x 280 x 114 mm
- Siemens lists VdS and UKCA
Standards and approvals: VdS, UKCA
Specifications
Specifications
| Specification | FDA241 |
|---|---|
| Operating voltage | DC 19…30 V |
| Operating current | 150 mA (nominal); 250 mA (in alarm) |
| Dimensions (W x H x D) | 155 x 280 x 114 mm |
| Sound level | High 37 dB, medium 33 dB, low 30 dB |
| Operating temperature | -20…60 °C |
| Relative humidity | 5...95 % (no condensation) |
| Pipe length | 60 m (single pipe length) 120m (total pipe length) |
| Air inlet pipe | Metric: 21 mm ID...25 mm OD |
| Relay outputs | 4x 2 A / 30 V |
| Alarm threshold | 0.03...2.0 % obs/m / info alarm, pre-alarm, fire 1 (10 sets) 2.0...20 % obs/m / fire 2 (10 sets) |
| Area coverage | Up to 800 m² |
| Display | 4 Alarm state indicators Fault indicators Purge Dust Smoke and airflow level Bargraphs |
| Communication protocol | FDnet/C-NET |
| Protection category | IP30 |
| Terminals | 0.2...2.5 mm² (30 - 12 AWG) |
Specifications as published by Siemens. Please confirm the exact model with us before ordering.
More Siemens Aspirating Smoke Detection
Siemens FDA222 Cerberus PRO ASD+ Aspirating Smoke Detector, 1 Chamber, up to 1600 m²
A single chamber ASD+ aspirating detector for rooms up to 1600 m², or 800 m² at Class A, with app-based commissioning and replaceable modules.
Siemens FDA242 Cerberus PRO ASD+ Aspirating Smoke Detector, 1 Chamber, up to 3000 m²
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Siemens FDA261 Cerberus PRO ASD+ Aspirating Smoke Detector, 2 Chambers, up to 3600 m²
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The largest-area ASD+ in this range: two independent aspiration systems in one device, for rooms up to 6700 m², or 3000 m² at Class A.
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