Jumo 60003300 Temperature limiter
Through its innovative casing made of high-quality plastic the 1-pin mechanical structure-thermostat is suitable for mounting on a DIN rail TH35 according to DIN EN 60715 or directly for wall mounting. The measuring system used works according to the principle of liquid expansion and can be used without any problem up to a maximum admissible sensor temperature of 345 °C. The smooth round sensor made of stainless steel has a diameter of 6 mm with a probe length of approx. 85 mm. The remote thermostat cable is made of copper. Under consideration of a bending radius of 5 mm the remote line can be laid flexibly. The maximum permissible ambient temperature on the housing (IP20 protection) is 55 °C. With the help of a screwdriver the desired shutdown temperature on a scale can be set easily. The set switch-off temperature can be read at any time. The safety temperature limiter has a high switching point accuracy of +0/-15 K in the upper half of the scale. The installed temperature compensation reduces ambient temperature influences at the switching head to a minimum. A decisive advantage is that no additional power supply is required for measuring the temperature. The electrical connection is made by push-in© terminals, whereby the installation time is significantly reduced compared to conventional screw connections. The maximum permissible switching power is AC 230 Volt / 16 A. The switch contact (clamp 2) is opened when the set temperature is reached and the signal contact (clamp 4) is closed at the same time. The switching contact is locked automatically and can only be unlocked manually after the temperature at the sensor has cooled down by approx. 25 K in the upper third of the scale or 45 K at the start of the scale. If the temperature at the sensor cools below -20 °C, the circuit between terminal 1 and terminal 2 also opens, but closes again when the temperature increases If the measuring system is destroyed, the circuit will be opened continuously and unlocking is then no longer possible. The switch contact is in the neutral position. The safety temperature limiter has many applications, and is used both in temperature monitoring in laboratories and air-conditioning cabinets, and in heating, air-conditioning and ventilation systems. Other areas of application are the plastics industry, the equipment and machine construction as well as the furnace construction and the building automation The device is approved according to DIN EN 14597 and DGRL and has an EAC approval.This text is machine translated.