-40 to +80°C (-40 to +176°F) / -45 to +80°C (-49 to +176°F)
Operating/Storage humidity
max. 90% RH (non-condensing)
Protection type
IP20
¹ When connecting with stranded wires, wire end ferrules must be used.
Art. No.
Switch-off temperature
Switch-on temperature
Switch-on temperature
Switch-off temperature
83F01
+15°C / +59°F
+5°C / +41°F
+50°C / +122°F
+40°C / +104°F
83F02
+25°C / +77°F
+15°C / +59°F
+60°C / +140°F
+50°C / +122°F
83F03
+10°C / +50°F
0°C / +32°F
+35°C / +95°F
+25°C / +77°F
> NC / NO or NO / NO in one unit
> DIN rail mountable
> With Fast Fixing part, Easy to install
> High switching accuracy
Tamper-proof (Pre-set) Thermostat NT 39-F: Contact breaker/NC (red casing) for regulating heaters or for switching signal devices when temperature has fallen below the minimum value. The contact opens when temperature is rising.
Tamper-proof (Pre-set) Thermostat NT 40-F: Contact maker/NO (blue casing) for regulating filter fans, heat exchangers, cooling devices or for switching signal devices when temperature limit has been exceeded. The contact closes when temperaure is rising.