380 volt

[eagleeye]

A friend of mine has just bought a pizza oven and the rating looks like 380 volt single phase at 4.5kW. Any idea how I can connect this to our current supply ? It's definitely single phase as the thick flew coming out of the unit is only 3 core (live, natural, earth)

 

[David M]

duplicate post

 

[David M]

I've just found a HP528T model for sale second hand, and that is rated at 4.5kw @ 240v

 

[eagleeye]

Thanks David. Not sure that's the one but will look though the website to see if I can find it.

Pete it only has a green/yellow, blue and brown. Unless it's been wired up incorrectly before

 

[Marvo]

You say it was just bought, if it's a new item then phone the suppliers for advice. They probably make different voltage and phase configurations depending on the location of export so be careful of pdf manuals on the internet, the wiring may vary. If you can't get adivce from the supplier then open the panels and check the wiring element voltages and contactor coil voltages.

 

[eagleeye]

So I emailed the suppliers and they confirm that it is a 380 volt supply, 3 phase at 4.5kW. How would they of had this connect and working in the last place on a single phase supply

 

[Lucien Nunes]

Some European heating & cooking equipment can be internally connected for either single-phase or 3-phase operation, so that it can operate on single-phase if that it all you have, but if a 3-phase supply is available the load can be balanced across them. I would then expect it to be described as 220/380V but what they might mean is that the default config as supplied is 3-phase in which case it's 380V. A quick look inside the terminal box would clarify what was done when last installed.

 

[eagleeye]

Cheers Lucian I think when I open it its gonna be converted to single phase inside. This means it's gonna be more kW though doesn't it if it's connected to single phase 230 volt

 

[Lucien Nunes]

No, the power consumption won't change if it is supposed to be re-configured for either kind of supply. The elements would be 230V and will each use the same current, just all from one phase instead of spread between three.