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A heating controller unit I have allows you to connect a 24-240v supply to it via a simple 2-terminal connector - all this does is trigger a something in the software (i.e. switch another output on or off) when a voltage is applied.
As it doesn't connect to anything that would consume electricity (i.e. a light, motor, etc) is it safe to assume that in reality applying 240v to this connection would only consume milliamps?
Or would it not actually use anything?
Posted : 21/11/2016 4:17 pm
Not enough detail, do you have a circuit diagram?
Posted : 21/11/2016 5:15 pm
Google "volt free connection".
Posted : 21/11/2016 6:02 pm
No load, no current. Current will depend on the resistance of the load. For heating the likely max. current is going to be around 3A if it's switching a pump/boiler etc.
Rich.
Posted : 21/11/2016 6:09 pm
I like that answer! Thank you! 🙂
Posted : 21/11/2016 9:40 pm