12000W pizza oven

[Spark1112]

Hi Folks 

I have a job for installing a 3-phase pizza oven 12kW 
It needs to be a 5 core cable SWA. 
What do you's reckon about cable size and fuse? It's a Eaton 3 phase board which is existing. 25m run from DB do the oven. The bit that's confusing me is that the pizza machine is on a 16amp 5 pin red plug which I can't imagine is big enough 

Regards 

 

[Andy™]

12kw is about 18a, so should really be on 32a plug or hardwired

 

[Spark1112]

Thanks 

6mm 5 core? 

 

[Ardet R]

Welcome, I would probably expect 2.5mm² five core SWA should be sufficient if you have a 20A breaker, but depending on length of run before the existing board and tripping characteristic you may need to upsize to account for volt drop and cable resistance to meet Zs.

If the rating is at 240V then they were probably just pushing the limits on the plug; oh it's only a bit over!!.  However the total load may be 12kW and the operation methods of the oven may mean it cannot reach that total.

What do the manufacturers instructions specify?

 

[Spark1112]

Thanks mate appreciate it. The problem is everything is in Italian. The guy who I'm doing the job for has bought it 2nd hand there's no manual. I've tried getting through to the company themselves based in Italy but I just can't get through no email no nothing