Thermostat TDS 247
Thermal differential switch with maximum part, for detecting open fires with and without smoke.
It is used when operational conditions are expected to involve disturbances such as dust, smoke, or steam.
In fixed installations, it must not be used for closures in escape and rescue routes.
Its special features are:
- optical status indication
- measurement part monitoring
- communication connection for RSBus
- potential-free normally open contact
Thermal differential switch with maximum part, for detecting open fires with and without smoke.
It is used when operational conditions are expected to involve disturbances such as dust, smoke, or steam.
In fixed installations, it must not be used for closures in escape and rescue routes.
Its special features are:
- optical status indication
- measurement part monitoring
- communication connection for RSBus
- potential-free normally open contact
| Version: | according to EN 54, Part 5 |
| Fire detection: | according to temperature, Class A1 |
| Maximum part: | 54°C to 65°C |
| Operating voltage: | 18 to 28 V DC |
| Current consumption at 28 V DC: | |
| Standby: | 22 mA |
| Alarm: | 11 mA |
| Fault: | 16 mA |
| Relay contact: | Normally open |
| Switching voltage: | 30 V DC |
| Switching current: | 1 A |
| Switching power: | 30 W |
| Protection class: | IP 42 |
| Ambient operating temperature: | -20°C to +80°C |
| Color: | white, similar to RAL 9010 |
| Technical data | |
| Color | White |