The thermostat, pre-set at 4 °C, triggers or cuts the power supply upstream of the transformer.
If > 4°C transformer is OFF
If < 4°C transformer is ON
One 220 V – 16 A thermostat can handle :
- 8 transformers 50 VA – 2 A
- 4 transformers 100 VA – 4 A
- 2 transformers 200 VA – 8 A - 1 transformer 400 VA – 17 A