PLANT ENGINEERING
PLANT ENGINEERING OVERVIEW 4 CONTACT AND FROST PROTECTION THERMOSTATS
ATR
JTF-
RTKSA-
TYPE
PAGE
175 175 175 175 179 179 179 179 179 179 179 179 179 180 180 180 180 180 180 177 177 177 177 177 177 177 177 177 177 177 177
DEVICES Contact thermostat
x x x x
Frost protection thermostat
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CAPILLARY LENGTH Capillary 1,800 mm Capillary 3,000 mm Capillary 6,000 mm Capillary 12,000 mm OUTPUT Microswitch (potential-free changeover contact)
x x x
x
x x
x
x
x x
x
x
x x x
x
x x
x x
x x
x
x
x
x
x
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CONTROL RANGE −10 to +12 °C −10 to +15 °C
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0 to 60 °C 30 to 90 °C
x x
x x
SWITCHING POWER 15 (8) A, 24–250 V~
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16 (2) A, 24–250 V~ NC contact: 16 (2.5) A at 230 V~ NO contact STW: 6.3 (2.5) A at 230 V~ NO contact STB: 2.0 (0.4) A at 230 V~
x x x x
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SUPPLY VOLTAGE none
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DEGREE OF PROTECTION IP20
x x x x
IP40 IP65
x x
x
x
x x x x
x x x x x
x
x x
x x
x
x
x
x
x
x
x
x
x
MISCELLA- NEOUS
Type testing by TÜV in accordance with DIN EN 14597
x x x x x x x x x
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Temperature controller
x
x
Temperature monitor Temperature limiter Safety temperature limiter Safety temperature monitor
x
x x x x
x x
x x x x
x
x x
x x
x
x x x x x x
x x x x x x
external setting internal setting
x x x
x
x
x x
x
x
x x x x
x
x
x
x
x
x
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155
Catalogue 2025
Prices valid from 01.01.2025 – 31.12.2025, prices may be subject to change | V1
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