Home Technical Questions

Extension kit and smart thermosta supported power

edited October 16 in Technical Questions

Hi All,

Im installing a thermostat with extension kit. the extension has to switch on the boiler as usual. I need also to power on two water pump circulator ( 220v, 50

Watt ). I would power on one pump with the same extension module and one with the thermostat. can i use the internal switch? can it bear this 220v load or i need an external relè?



  • The relays in both devices are rated at 6 amps. 50 watts is less than 0.25 amps, but you need to take into account all devices drawing electrical power through the relay. If in doubt consult an electrician.

Sign In or Register to comment.