Double heating thermostat JUMO heatTHERM AT, model 603070/0120

The double thermostat has 2 independent fluid-filled measuring systems and is normally used as a control (TR) and monitoring device (STB or STW), predominantly in heating technology. The safety temperature limiter (STB) must be manually unlocked after triggering, the safety temperature monitor (STW) switches back automatically.


Technical data:
• Push-In® connection technology – installation time reduced by 50%
• Protection type: IP 54
• Tested according to DIN 14 597 (replacing DIN 3440)
• Capillary break protection with STB and STW, if the measurement system is destroyed, the circuit opens and remains open
• Switching capacity 16A, 230V, at least 250,000 switching cycles with TR
• Switching point deviation max. ± 5% across entire service life
• Individual control range limitation
• Stable switching point position due to ambient temperature compensation
• two designs in one device: Thermostat with rigid shaft and long distance cable thermostat
(FL: 2000mm, rolled up in housing interior)

• Consisting of temperature regulator (TR, external setting) and safety temperature monitor (STW, internal setting) switching value inspection through window in housing lid), without manual unlocking
TR:
• Control range: 0...120°C
• Switching differential: approx. 3 K
• Connection: protective pipe DN 15 (G1/2”), EL 100 mm, nickel-plated brass
STW:
• Control range: 70...130°C
• Switching differential: approx. 10 K
• Connection: protective pipe DN 15 (G1/2”), EL 100 mm, nickel-plated brass