SecuriStar TCD 573

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FeaturesOperation/DescriptionsSpecifications
  • Temperature detector compliant with EN 54-5, classes A1, A2, B 
  • Digital signal processing 
  • Individual addressing 
  • High level of security thanks to SecuriLine® ring circuit wiring

The TCD 573 (Temperature Criteria Detector) detects fires with and without smoke development. It is the detector of choice where rapid fire development and high temperatures might be expected or when smoke detectors cannot be deployed due to environmental influences. An NTC temperature sensor located in the sampling chamber continuously measures the ambient temperature and rate-of-rise of the temperature. If the set alarm point or the defined rate-of-rise is exceeded, the detector transmits an alarm to the control unit. The detection range can be specifically defined from the control unit. The TCD 573 is available in the three sensitivity ranges – classes A1, A2 and B – in compliance with EN 54-5. All detectors of the three classes detect various differential and maximum measuring procedures.

Technical data  
24 VDC Operating voltage
16 to 30 VDC Permitted voltage range
430 µA Operating current, quiescent (max.)
20 mA Operating current, alarm (max.)
EN 54-4 and 17 Standards
LED red Individual display
6,8 V/5 mA External display

-25°C to +60°C

10...95%

70%

Ambient conditions

Operating temperature range

Short-term relative humidity

Constant relative humidity

IP 44 Protection class
White Colour
ABS/PC Housing material
125g Weight
G 208197 VdS approval
0786-CPD-20607 CPD approval

 

Product summary  
TCD 573-1 Class A1 Universal temperature detector
TCD 573-2 Class A2 Universal temperature detector
TCD 573-3 Class B Universal temperature detector
USB 501-1 Universal SecuriStar® base

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