Technical Data - Tech Controllers EU-24 SIGMA User Manual

Moreover, the controller is equipped with a bimetallic mini-sensor (thermal overload relay),
which automatically disconnects the fan from the power supply when the temperature of
about 85°C is reached (CH pump works all the time)
It prevents the water in the installation form boiling in the case of boiler overheating or controller damage.
After this protection has been activated and the temperature has dropped to a safe level, the sensor will
automatically unlock itself and the alarm will be turned off. In the case when the thermal overload relay is
damaged, the fan does not operate either in manual mode or in automatic mode.
ST-30 regulator features two WT1,6A tube fuses as a network protection. Using a higher
amperage fuse may damage the controller.

TECHNICAL DATA

No. Description
1 Power supply
2 Maximum power consumption
3 Ambient temperature
4 Pump max. output load
5 Fan max. output load
6 Temperature measurement accuracy
7 Sensor thermal resistance
8 Fuse
230V ±10% /50Hz
3W
5÷50
0,5A
0,6A
1°C
-30÷99°C
2x 1,6A