Astra Automatyka > Produkty > Termostat bezpieczeństwa z pokrętłem nastawczym STBTR HONEYWELL
Termostat bezpieczeństwa z pokrętłem nastawczym STBTR HONEYWELL
Termostat bezpieczeństwa z pokrętłem nastawczym STBTR HONEYWELL
Temperature monitors and temperature limiters are tested according to Pressure Equipment Directive 97/23 EC, meet the requirements of DIN EN14597 and can thus be used for heating systems according to DIN EN12828, for steam and hot water systems and for district heating systems.
The devices with safety function (STW, STB) are self-monitoring, i.e. in the event of breakage or leaks in the measuring system the circuit is opened and the system is switched off towards the safe side.


Tabela doboru produktu
FunctionSafety temperature
monitor and controller
Safety temperature
limiter and monitor
Safety temperature
limiter and controller
Satting range20 … 150°C30 … 110°C30 … 110°C
SattingSTW internal
TR external
STW internal
TW internal
STB internal
TR external
accesible from
Satting wheel for TRReclosing buttonReclosing button and
satting wheel for TR
Contact2 x changeoverNC (STB)  and
changeover (TW)
NC (STB)  and
changeover (TR)
lockout (internal)
 Max. temperature
at sensor
Imersion depth150 mm150 mm150 mm
Permitted pressure,
brass immersion tube
25 bar25 bar25 bar
 Permitted pressure,
stainless steel
immersion tube
40 bar
40 bar
40 bar

Sealing pipe thermostat with well.
For safety temperature control, and in addition high temperature shut-off functionality.

Parametr Wartość
Protection class IP54
Housing material aluminium diecasting with plastic cover
Ambient temperature 0 ... 80°C
Switch function/capacity safety control switch SPDT 230 VAC, 10 A; shut-off temperature switch
SPST 230 VAC, 10 A
Mechanical lock/reset shut-off mechanical lock, with hand reset on outside of thermostat
Immersion depth 150 mm
Certificates TUEV-approval TR / STB 90 007
Thermostat application immersion tube therm. + controller
Thermostat functions temp. setting inside + outside, reset outside
Temp. setpoint range 30 ... 110°C
Mounting place in pipe
Immersion well material red brass, nickel plated
Immersion well thread R ½″
Max. perm. temp. at sensor 130°C
Additional description safety control switching differential approx. 4% of setpoint value. Shut-off temperature: 30 ... 110°C adjustable
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