Alre-it Frost protection thermostat RTKSA-203.000 Manufacturer :Alre-it Designation :Frost protection thermostat STB, 1,8m, IP40 Type :RTKSA-203.000 Measuring range :-10..15 °C Switching differential adjustable :no Differential range/switching hysteresis :3 K Length capillary :1,8 m Max. medium temperature (continuous operation) :120 °C Max. medium temperature (continuous operation) :120 °C Max. contact voltage :230 V Voltage of contacts :230 V Max. Max. contact load :16 A Contact interlock :yes Protection class (IP) :IP40 Explosion-proof :no Height :146.8 mm Width :53 mm Depth :57.5 mm Alre-it frost protection thermostat RTKSA-203.000: more details The frost protection controllers RTKSA have been specially developed for frost protection on the air or water side of hot-water heating registers and heat exchangers in ventilation, heating or air-conditioning systems. In the event of a sensor break, contact 1 ¿ 2 is permanently opened and contact 1 ¿ 4 is permanently closed. Unlocking is no longer possible. Note: Mounting clamps, immersion sleeves and protective coils are not included in the scope of delivery and must be ordered separately. For temperature measurement of non-aggressive gases in the duct, the protection coils SWK-2-xxx can be used. Water-side application: For temperature measurement in non-aggressive fluids the thermowells THK-2-xxx and in aggressive fluids the thermowells NTHK-2-xxx can be used. , EAN: 4050528074812.