Thermodifferential switch 247 for replacement old systems, multicolor
Thermodifferential switch with maximum component, for detecting open flames with and without smoke.It is used when operationally dealing with disturbances such as dust, smoke, or steam is expected.
In fixed installations, it must not be used for closures in escape and rescue routes.
Its special features are:
- optical status indicator
- measuring component monitoring
- communication connection for RSBus
- potential-free normally open contact
| Design: | according to EN 54, Part 5 |
| Fire detection: | by temperature, Class A1 |
| Maximum component: | 54°C to 65°C |
| Operating voltage: | 18 to 28 V DC |
| Power 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 |
| Degree of protection: | IP 42 |
| Operating ambient temperature: | -20°C to +80°C |
| Color: | Multicolor in a color system similar to RAL-Classic available in satin matte and glossy |