The flue gas thermostat is used to monitor the flue gas temperature in the flue pipe of heat generating equipment. The sensor of the ATW consists of a metal tube and a metal rod arranged therein with different expansion coefficients, which result in a difference in length when the temperature changes. This acts on a precision microswitch which interrupts the circuit above a fixed limit temperature. After the temperature at the sensor has dropped by approx. 15 K below the switching point, the microswitch switches back and the circuit is closed again. Note: When mounting the sensor, make sure that it is not bent or damaged.
Performance features
- Smallest design, high temperature resistant due to special metal and ceramic materials
- Approved for use in heat-generating systems, TÜV tested according to DIN, therefore no DIBt approval necessary
- Intrinsically safe design, maintenance-free with simple mounting on the flue pipe
- Switching point 40° C
- Change-over contact with switching capacity ~400V up to 16A, switching differential approx. 15 K
- Permitted medium temperature 500° C, at the switch housing 180° C
Technical data
Switching point: | 40° C |
Switching accuracy: | ± 7 K |
Switching difference: | approx.15 K |
Limit value range: | Limit value between 0° C and 400° C factory-set and sealed |
Operating medium: | Air or flue gas |
Permissible ambient temperature: | max. 180° C at the switch housing |
Medium temperature: | 0...500° C |
Time constant: | < 45 Sekunden |
Connection cable: | 2 m (4-wire), silicone, max. 180°C |
Protection class according to DIN EN 60529: | IP 40 |
Switching capacity: | 16 (4) A 400V∼ at cosϕ = 1 (0.6) |
WEEE NO.: 91394868
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