JUMO heatTHERM AT double thermostat for heating system, type 603070/0120, 0-120°C / 70-130°C CR 1/2"

• The dual thermostat has two independent liquid-filled measuring systems and is primarily used in heating systems as a control (TR) and monitoring device (STB or STW). The safety temperature limiter (STB) must be manually reset after tripping, while the safety temperature monitor (STW) resets automatically.

Technical data:

• PushIn® connection technology – 50% less installation time
• Protection class: IP 54
• tested according to DIN 14 597 (replacement for DIN 3440)
• Capillary break protection in STB and STW systems: if the measuring system is destroyed, the circuit opens permanently.
• Switching capacity 16A, 230V, at least 250,000 switching cycles at TR
• Maximum switching point deviation ± 5% over the entire service life
• individual limitation of the control range
• Stable switching point position through ambient temperature compensation
• Two designs in one device: thermostat with rigid shaft or remote line thermostat.

(FL: 2000mm, rolled up inside the housing)

• Consisting of a temperature controller (TR, external setting) and a safety temperature monitor (STW, internal setting, monitoring of the switching value through a window in the housing cover), without manual unlocking.

TR:

• Control range: 0...120°C
• Switching differential: approx. 3 K
• Connection: Protective tube DN 15 (G 1/2"), EL 100 mm, nickel-plated brass

STW:

• Control range: 70...130°C
• Switching differential: approx. 10 K
• Connection: Protective tube DN 15 (G 1/2"), EL 100 mm, nickel-plated brass