Astra Automatyka > Produkty > Czujniki i przetworniki > Termostaty > Termostaty bezpieczeństwa > Termostat bezpieczeństwa z ręcznym resetem i szerokim zakresem STW1 STB1 FEMA
Termostat bezpieczeństwa z ręcznym resetem i szerokim zakresem STW1 STB1 FEMA

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...

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
Type STW1 STB1
Function safety temperature monitor safety temperature limiter
Setting range 20 … 150°C 60 … 130°C
Setting internal internal
Controls accesible from outside no reclosing button
Contact changeover opener contact
Reclosing lockout (internal) no yes
Max. temperature at sensor 175°C 150°C
Immersion depth 150 mm 150 mm
Permitted pressure, brass immersion tube 40 bar 40 bar
Permitted pressure, stainless steel,  immersion tube 80 bar T4NST 80 bar T4NST
Termostat bezpieczeństwa z ręcznym resetem i szerokim zakresem STW1 STB1 FEMA
Parametr Wartość
Protection class IP54
Housing material aluminium diecasting with plastic cover
Ambient temperature 0 ... 80°C
Switch function/capacity SPDT 230 VAC, 10 A
Mechanical lock/reset no mechanical lock
Certificates TUEV-approval STW (STB)89 407 S
Thermostat application immersion tube thermostat
Thermostat functions temp. setting inside, reset inside
Temp. setpoint range 20 ... 150°C
Mounting place in pipe
Immersion depth 150 mm
Immersion well material red brass, nickel plated
Immersion well thread R ½″
Max. perm. temp. at sensor 175°C
Additional description fixed switching differential approx. 4% of setpoint value.
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