Siemens FDOOT241-9 - Heat Detector FDT221; Description; Specifications

Project engineering
54
Building Technologies 007004_k_en_--
Fire Safety & Security Products 16.04.2009
4.5.2 Heat detector FDT221
4.5.2.1 Description
The heat detector FDT221 has the following parameter sets:
z A1R (1)
z BR (2)
See also
 Description [J 52]
4.5.2.2 Specifications
Operating temperature
typ. / max.
Static activation
temperature
1
Differential activation
temperature
2
Differential activation
possible from:
No. Name
[°C] [°C] ∆T [K] [°C]
1 A1R
60℃ rate of rise
25 / 50 60 25 3
2 BR
80 ℃ rate of rise
40 / 65 80 29 30
1
Applicable with slow temperature increases <1 K/min.
2
Applicable with fast temperature increases >10 K/min. With slow temperature
increases of <10 K/min, this value increases by several degrees.
All parameter sets meet the criteria of standard EN 54-5.