User Manual
Siemens 
Smart  Infrastructure  - Building  Products   
–5– 
usa.siemens.com/fire 
Technical Data
OPERATING 
TEMPERATURE: 
+
32° – 
+
120°F  
(0° – 
+
49°C) 
HEAT DETECTOR  
RANGE: 
+
135° – 
+
175°F  
(
+
57° – 
+
79°C) 
PROGRAMMABLE 
SUPERVISORY 
TEMPERATURE 
WARNING: 
-
4° – 
+
120°F  
(
-
20° – 
+
49°C) 
(available with compatible FACPs) 
DETECTOR 
SENSITIVITY 
RANGE: 
UL Listed: 0.88 to  3.35 % / ft. 
NFPA 76 (Telco) 
VEWFD:   0.2 % / ft. Pre-alarm 
1.0 % / ft. Alarm 
AIR VELOCITY: 
0 − 4,000 feet-per-minute (fpm) 
0 − 4,000 fpm 
Open Area: 
 Direct-in-duct: 
AIR PRESSURE: 
No effect 
APPLICATION 
PROFILES: 
22 
(field-configurable) 
RELATIVE  
HUMIDITY: 
0 – 95% 
(non-condensing) 
Thermal Ratings 
FIELD-SELECTABLE  TEMPERATURE  PROFILES   
FIXED 
TEMPERATURE:   
135°F (57.2°C) 
145°F (62.8°C) 
155°F (68.3°C) 
165°F (73.9°C) 
175°F (79.4°C) 
FIXED 
TEMPERATURE  + 
RATE-OF-RISE: 
(R-O-R) 
135°F (57.2°C) +  
R-o-R, 15°F (
-
9.4°C) 
175°F (79.4°C) +  
R-o-R, 15°F (
-
9.4°C) 
135°F (57.2°C) +  
R-o-R, 20°F (
-
6.6°C) 
175°F (79.4°C) +  
R-o-R, 20°F (
-
6.6°C) 
FIELD-SELECTABLE   
ALARM-THRESHOLD  PROFILES 
THRESHOLD: 
2.5% / feet 
3.0% / feet 
THRESHOLD,   
VERIFIED: 
2.5% / feet 
3.0% / feet 
FACTORY MUTUAL (FM) 
3210, 3230 
CALIFORNIA  STATE  
FIRE MARSHAL (CSFM) 
7272-0067:0260 
UNDERWITERS 
LABORATORES  (UL | ULC) 
UL268 
UL268A 
UL521 
ULC-S524 
NATIONAL FIRE 
PROTECTION  AGENCY 
NFPA 25 
NFPA 72 
NFPA 76 
Electrical Ratings 
INPUT VOLTAGE  RANGE: 
13 – 32 VDC 
ALARM CURRENT:  
650 μA, max. 
STANDBY  CURRENT: 
(quiescent) 
Mounting Diagrams | Dimensions 
 Model FDOOT441 
 Model FDOOT441 
[with Model DB-11 detector base] 
 Model FDOOT441 
[with Model DB-11E detector base]
MODEL   
OR TYPE 
PART 
NUMBER 
PRODUCT 
FDOOT441 
S54320-F7-A1 
Multi-Criteria  Fire 
Detector with 
ASAtechnology 
DB-11 
500-094151 
Detector  
Mounting Base 
DB-11E 
500-094151E 
Detector Base, small 
DB2-HR 
S54370-F12-A1 
Detector Mounting 
Base with Relay 
RL-HC 
500-033230 
Remote Alarm 
Indicator:   4”  
(10.2 cm) octagon-
box mount, red 
RL-HW 
500-033310 
Remote Alarm 
Indicator:   single-
gang box mount, red 
LK-11 
500-695350 
Base Locking  Kit 
See: www.STI-USA.com  for further 
details on ordering Model STI-9604 
In Canada order: 
MODEL   
OR TYPE 
PART 
NUMBER 
PRODUCT 
DB-11C 
500-095687 
Detector  
Mounting Base,  
ULC Listed 
Product Compatibilities 
MODEL OR 
TYPE 
DATA 
SHEET 
PANEL 
XLS 
6300 
FireFinder (fir e) 
XLSV 
6340 
FireFinder  
(fire w/ voice) 
FC2005 
6813 
Desigo Fire Safety 
50-point addressable 
FC2025 
6815 
Desigo Fire Safety 252-
point addressable (fir e) 
FC2050 
Desigo Fire Safety 504-
point addressable (fir e) 
FV2025 
6821 
Desigo Fire Safety 252-
point addressable  
(fire w/ Intelligent Voice 
Communication [IVC]) 
FV2050 
Desigo Fire Safety 504-
point addressable  
(fire w/ Intelligent Voice 
Communication [IVC]) 
Approvals | Standards 
Details for Ordering 






