JUMO 602021 Panel-Mounted Thermostat EM Series Up to 500C Operating Manual - Manual (Page 5)

5
1 Introduction
1.2 Application
Thermostats control and monitor thermal processes.
Panel-mounting thermostats operate on the principle of liquid or gas
expansion. A microswitch serves as the electrical switching device.
The devices of the EM model series can be supplied as temperature
controllers TR, operating temperature limiters TW, operating temperature
limiters TB, protection temperature limiters STW and protection temperature
limiters STB.
In case of faults, the STB switches the plant that it is monitoring into an
operationally safe state.
Versions to: DIN EN 14597
TR Temperature controller
TW Operating temperature limiter
TB Operating temperature limiter
STW(STB) Protection temperature limiter
STB Protection temperature limiter
Type approval according to:
- DIN EN 14597
- Pressure Equipment European Directive 97/23/EC
(only Type EM-20, EM-30, EM-40, EM-50)
- VDE 0631
- UL
- CSA (only Type EM-1, EM-2, EM-4, EM-50)
You will find the Declarations of Conformity at:
www.jumo.net
➯ Products ➯ Thermostats ➯ Data Sheet 602021
or ask for them to be sent.
1.3 Marking
Depending on the version:
(see nameplate for details)
A
Cutting through or kinking the capillary of the panel-mounting thermostat, EM
series, will lead to permanent instrument failure!!