603026 / 0120-1-043-30-0-00-20-13-46-150-15-6 / 000, double thermostat (TR / STW), 20 to 150 ° C, installation length 150 mm

Double thermostat (TR / STW), 20 to 150 ° C, installation length 150 mm

Due to its impact-resistant housing with high-quality plastic cover and aluminium pressure cast base, the mechanical construction double-thermostat is very robust and can also be used under harsh conditions. The device consists of a temperature controller and a safety temperature guard (STW). The temperature adjustment of the temperature regulator is done with the help of a sensor on a scale. The desired switch-off temperature of the safety temperature guard can be set on a scale after the case cover is removed by means of a screw-off. & lt, br & gt, The temperature controller is characterized by a high switching point accuracy of + 0 / -1.5% in the upper scale and has a switching difference (hysteresis) of about 3 to 4% of the scale. After the switch-off point is reached, it automatically switches back to the state of origin by the value of the switch-off difference after the switch-off temperature is down. & lt, br & gt, The safety temperature guard is characterized by a high switching point accuracy of + 0 / -5% in the upper scale and has a switching difference (hysteresis) of about 4 to 6% of the scale. After the switch-off point is reached, it automatically switches back to the state of origin by the value of the switch-off difference after the switch-off temperature is down. In addition, the safety temperature guard has a self-monitoring function, so that the circuit of the STW is permanently opened when the measuring system is destroyed. The switching contact of the STW is then in a neutral position, so no contacts are connected. In addition, when the sensor is cooled to a temperature below approx. -20 ° C of the circuit also open, only when temperature increases over approx. -20 ° C the contact is closed again. & lt, br & gt, A crucial advantage is that no additional auxiliary energy is required for temperature measurement. The electrical connection is made by screw terminals directly on the built-in microswitches, which can directly switch a maximum permissible switching power of AC 230 Volt / 10 A. & lt, br & gt, The measurement systems used operate according to the fluid expansion principle and can be used without any problems up to a maximum permissible sensor temperature of 175 ° C. The diving tube made of brass, nickel plated, has a diameter of 15 mm. The mounting is done by a thread G 1 / 2 form A according to DIN 3852 / 2. The maximum permissible ambient temperature on the housing (protection type IP54) is 80 ° C. & lt, br & gt, The thermostat is very flexible to use and is used in the heating, air conditioning and ventilation technology as well as in the plastics industry, equipment and mechanical engineering as well as in the furnace construction, district heat transfer stations and for temperature monitoring in the laboratory and climate cabinets. The device is approved in accordance with DIN EN 14597 and DGRL and has an EAC approval.