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Mechanical temperature controller/ surface-contact thermostat THERMASREG® ALTR with switching output (two-position controller). Suitable for monitoring, controlling and limiting temperatures at pipes or vessels, e.g. in connection with hot-water or underfloor heating systems. The ALTR is built as a one-step device, as an adjustable temperature controller TR (with external setting) or as an adjustable temperature monitor TW (with internal setting).
|Switching capacity (Contact load)||
24 … 250 V AC + 10 %, 16 A, cos ϕ = 1.0
24 … 250 V AC + 10 %, 1.5 A, cos ϕ = 0.6
at 24 V AC min. 150 mA
|Operating difference||5K (± 1K)|
dust-proof switch block unit as potential-free
single-pole changeover contact
endless metal strap and metal tightener
(included in scope of delivery)
|Strap dimensions||Ø = 13 - 92 mm (¼ - 3"), L = 300 mm|
material polyamide, 30 % glass-globe-reinforced,
colour traffic white (similar to RAL 9016)
|Housing dimensions||108 x 70 x 73,5 mm (Thor 2)|
|Housing temperature||–35...+65 °C|
|Cable gland||M 20 x 1.5; including strain relief|
|Design principle||torsion meter with liquid filling|
|Tolerance||Tmin ± 5 K; Tmax ± 5 K|
|Protection class||I (according to EN 60 730)|
|Protection type||IP 65 (according to EN 60 529)|
EMC directive 2014/ 30/ EU,
low-voltage directive 2014/ 35/ EU
Heating: The preset setpoint (scale value) is equivalent to the switch-off value of the heating.
The switch-on value is lower by the amount of operating difference.
Contact 2 - 3 breaks when temperature rises to the preset value. Cooling: The preset setpoint (scale value) is equivalent to the switch-on value of the cooling.
The switch-off value is lower by the amount of operating difference.
Contact 1 - 2 closes when temperature rises to the preset value.
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