Temperature switches

Mechanical temperature switches have been developed to switch an electrical contact when a temperature in a process exceeds defined limits. The temperature can be too high or too low. Temperature switches have no precise local indication, no analog output signal and need no electrical power supply. These simple devices are purely optimized to guarantee excellent repeatability and reliability of the switching behavior.

Temperature switches without power supply are used in safety-critical applications.

Many applications like monitoring or regulation of fluid temperatures in a tank and heat exchangers etc. benefit from these safe and simple solutions.

Temperature switches are available in EExd versions for hazardous areas.

Baumer Technologies temperature switches offer reliability and proven resistance to harsh environments and processes.

They can be custom-made to match your application requirements.

Select among a complete range of:

• Temperature ranges: 10° C ... 400° C
• The setpoint factory is adjusted or set by the customer
• Direct mounting or via remote capillary
• Different types of microswitches depending on the applications
• Excellent repeatability of 1%
• Explosion proof version EEx d IIC T6

Mechanical Temperature switches are designed for alarm setting if temperature limits are exceeded or temperature regulation between 2 setpoints.

The sensing element of a temperature switch is a closed, gas filled system. The pressure in this system depends on the measured temperature. This pressure is applied to a membrane which actuates a mechanical microswitch using a lever.

The value of the setpoint is defined by the adjustment of a compressible spring working in the opposite direction than the membrane. The setpoint can be adjusted in the factory or by the customer.

Baumer Technologies temperature switches provide excellent repeatability in a compact design. The working principle is fully mechanical and requires no electrical power supply. Wiring has to be done only to read the microswitches.