ETT-2 2-step Thermostat

For on/off regulation of heating plants in two steps.
Available for heating function
2 types cover a scale range from 0 to +110°C. Equipped with two SPST, 6A.
The distance between activation of relay 1 and relay 2 may be adjusted from 0-10% of the scale range with the help of control knob DIFF.
Heating function: At calls for heating, the relays are activated stepwise. Relay 2 is activated first. Red LED is lit.

• 2 types cover a scale range from 0 to +110°C
• Equipped with two SPST, 6A