3N400v hearer from single phase

calimero242 · 23-10-2016 5:08pm #1

To all electric guru,

i am receiving conflicting info about whether or not a 3phase sauna heater (400v) can be connected to a single phase supply (home).
I bought one of those by mistake and although some sparky claim a converter is required, others say it can be easily done... not ideal though.

https://www.manualslib.com/manual/836142/Harvia-M45.html?page=16#manual

The heater manual diagram seems to show the schema to wire the appliance on 240v 1N
Any thought on that ?
thanks

gctest50 · 23-10-2016 5:18pm

Easily done, which model is it ?

calimero242 · 23-10-2016 5:23pm

Hi,
That s a the M60 (6Kw). the device is currently wired with 3 phase plug/cable. Easy job ? -

..
if i read the manual correctly . a 3 x 10 mm2 cable is required right ?

Thanks E

gctest50 · 23-10-2016 5:39pm

Here it is without all the thermostats and timedelay contactor, makes it easier to see :

For three-phase, each element is between the neutral and one phase :

Here, hooked up for single phase, the three heating elements are between the neutral and phase :

3N400v hearer from single phase

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