Particularities
• Self-monitoring (STB/STW [STB]) and Safety cut-out (STB/STW [STB])
in the event of a pressure drop
• Version according to DIN EN 14597 and to Pressure Equipment Directive 2014/68/EU
• Protection type IP54
• Measuring range -501 to +500 °C

Brief description
Thermostats are used to control and monitor thermal processes. ATH surface-mounting double
thermostats consist of two separate measuring and switching systems.
The devices are available as temperature controllers TR, temperature monitors TW, safety temperature
monitors STW (STB) and safety temperature limiters STB. In the event of a malfunction,
the STB switches the monitored machine line to an operationally safe status.
Surface-mounting double thermostats operate according to the fluid expansion principle, a microswitch
serves as an electrical switching element.