TDS 247 thermal switch
Thermo switch, TDS 247
THERMOSWTCH-F.CSEQ-TDS247-WHTE
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Thermal differential switch for detecting open fires with and without smoke formation.
- Inspection indication in accordance with DIN 14677
- Optical status indicator
- Measuring part monitoring
- Communication connection for RSBus
- Potential-free break contact
The current contamination of the smoke switch is intelligently checked by the contamination compensation. The response threshold is constantly adjusted on the basis of this data. The contamination compensation keeps the difference between the base signal and the alarm threshold constant at all times. The smoke switch always 'knows' whether contamination should be taken into account as a disturbing factor.
A base is always required for installation.
Delivery time: approx. 10 working days.
The thermal switch should be replaced after 8 years.
Datasheets(X)
For use in locations where operating conditions can result in disturbance from e.g. dust, smoke or steam.
 | |
Area of application | Object area |
Suitable for | Hold-open device |
Mounting option | Ceiling installation horizontal |
Type of assembly | To plug on |
Installation type | Flush and surface-mounted |
Material | Plastic / metal |
Colour | Pure white, similar to RAL 9010 |
Standby current consumption | 22 mA |
IP protection class | IP 42 |
Fault current consumption | 16 mA |
Contact voltage | 30 V/DC |
Min./max. temperature conditions | -20 to 80 °C |
Standards | EN 54-7, EN 14637, DIN 14677 |
Approval | DIBt Z-6.510-2289 |
Environmental Product Declaration | No |
EC declaration of conformity (CE) | No |
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!