04563936
JUMO 60003299 Sicherheitstemperaturbegrenzer,

Due to its innovative case made of high-quality plastic, the 1-pole mechanical surface-mounting thermostat is suitable for mounting on a DIN rail TH35 according to DIN EN 60715 or directly for wall mounting. The measuring system used operates on the fluid expansion principle and can be used without any problems up to a maximum permissible probe temperature of 172°C. The smooth round sensor made of copper has a diameter of 6 mm with a probe length of approx. 60 mm. The capillary is also made of copper and is rolled up inside the case on delivery. Taking into account a bending radius of 5 mm, the capillary can be laid flexibly. The maximum permissible ambient temperature at the switch head (protection class IP20) is 55°. With the aid of a screwdriver, the desired switch-off temperature can be easily set on a scale. The set switch-off temperature can be read off at any time. The safety temperature limiter is characterized by a high switching point accuracy of +0/-10 K in the upper third of scale. The integrated temperature compensation reduces ambient temperature impacts on the switching head to a minimum. A decisive advantage is that no additional auxiliary energy is necessary for temperature measurement. The electrical connection is made by PushIn© terminals, which significantly reduces installation time compared to conventional screw connections. The maximum permissible switching capacity is AC 230 V / 16 A. The switching contact (terminal 2) is opened when the set temperature is achieved and the signal contact (terminal 4) is closed at the same time. The switching contact is automatically locked and can only be manually unlocked again after the temperature at the probe has cooled down by approx. 15 K in the upper third of the scale or 30 K at the start of the scale. When the temperature at the sensor cools down below -20 °C, the circuit between terminal 1 and terminal 2 also opens, but closes itself again when the temperature rises. If the measuring system is destroyed, the circuit is permanently opened, unlocking is then no longer possible. The switching contact is then in a neutral position. It is very flexible and can be used in building automation as well as in heating, air conditioning and ventilation technology. Further areas of application are the plastics industry, apparatus and mechanical engineering as well as furnace construction and temperature monitoring in laboratory and climatic chambers. The device is approved according to DIN EN 14597 and DGRL and has also an EAC approval.