Model 55-8xx

Bimetal thermometer with switch contacts

Stainless steel version

Selected documents
Sales contact

WIKA Instrumentation PTE. LTD.

+65 6844 5506
+65 6844 5507


    • Control and regulation of industrial processes
    • Monitoring of plants and switching of circuits
    • Chemical industry, petrochemical industry, process technology and food industry
    • For aggressive media

Special features

    • High reliability and long service life
    • Universal application
    • Case and stem from stainless steel
    • Instruments with inductive contacts for use in hazardous areas with ATEX approval
    • Instruments with electronic contact for PLC applications


Wherever the process temperature has to be indicated locally and, at the same time, circuits need to be switched, the bimetal thermometer with switch contacts finds its use.

Switch contacts (electrical alarm contacts) make or break an electric control circuit dependent upon the position of the instrument pointer. The switch contacts are adjustable over the full measuring range. The instrument pointer actual value pointer) moves freely across the entire scale range, independent of the setting.

The set pointer can be adjusted via the window using a removable adjustment key (mounted on the cable terminal box).

Switch contacts consisting of several contacts can also be set to a single set point. Contact actuation is made when the actual value pointer travels beyond or below the desired set point.

As switch contacts, inductive contacts – for requirements to ATEX – or electronic contacts for triggering a PLC are available.

For further information on the different switch contacts please see data sheet AC 08.01.

Bimetal thermometer with switch contacts
  • Bimetal thermometer with switch contacts
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