Soil steriliser wiring.

[robbie77]

Hi!
I have had a soil steriliser that has been wired to run as single phase apparently!?

It looks like on the back maybe it could run as either reading the voltages on the back sticker.

I pulled the back off to look at the wiring and it looks like the live from the flex is connected to the top and bottom blocks and the middle one has been wired to the neutral!? Does this sound right?

I found a similar unit, mine is slightly larger, on line that said the following:

OIL STERILISER
HD5114 – Capacity 68 Ltrs
This unit is similar to the HD5112 in
construction, but is fitted with two
1.5kW elements. Sterilisation time is
about 90 minutes with a consumption
of 4½ units of electricity.

Could this be wired into FCU on existing circuit ( already one in from old welder) or will it need it's own dedicated 40 amp circuit!? The labels on the back are confusing and the electrian who did the wiring has retired.

Many thanks !

 

[Harry Bloomfield]

That looks really dodgy, and needs to be thoroughly checked out before putting into service. 9000w 240v = 37.5amps, but it may draw a little more, depending on at what actual voltage 220, or 240v it was measured. A 45amp circuit should be adequate. Your supply, in the Coppex, does not look adequate.

 

[robbie77]

Yeah it does look ropey doesn't it. Would the neutral work in theory? The middle plug has the cables bridged and then the neutral cable stuffed in there. If that was terminated propery would that look OK from an electric point of view? Does the 220 v and 440v mean it could run as single or three phase? I need to see if I can find any more info on it really or fid someone that knows about them.

 

[Harry Bloomfield]

Does the 220 v and 440v mean it could run as single or three phase?

Yes!

 

[endecotp]

Does the 220 v and 440v mean it could run as single or three phase?

Yes, and this is actually pretty common for things like commercial ovens.

If you're going to try to use that, make sure you have RCD protection and consider what your plan will be if it catches fire.