Inbuilt oven and induction hob installation question

[sweind]

Hi All,

I am renovating my kitchen and have bought induction hob (trevlig) and inbuilt oven (smaksak without pyro) from ikea. I had a free standing double oven with integrated hob before. So the electrical connection is 3 phase (see picture).
From the wires on the induction hob, it seems it is 3 phase as well(see picture)
From the wires on the oven, it seems single phase is enough (see picture)
I bought WAGO connectors and have junction box.
So first question : do you think I can make the connections my self without electrician if I use the wago connectors.
Second question : if the wires from fuse box are 3 phase, and the oven wires are not, any risk with connecting them through wago connector ( together with induction hob).
Third: the instruction for oven says there should be isolator switch with min 3mm gap. Is this some thing that is normally built in the fuse box?
Based on my questions , you probably have guessed that my electrical knowledge is quite basic .So I might come back with more basic questions.

Thanks and Regards

 

[Bo.Siltberg]

From the wires on the induction hob, it seems it is 3 phase as well(see picture)

The hob uses two phases, neutral and protective earth. That's good, because then you can use the third phase for the oven.

From the wires on the oven, it seems single phase is enough (see picture)

Correct.

do you think I can make the connections my self without electrician

Only if you feel confident and can safetly identify that your socket outlet contains three phases, neutral and protective earth. And you need of course identify all five conductors. It is especially important that you identify the neutral and protective earth so that they are not mixed up. The colors used are old so you need to check carefully by inspecting both ends and measure voltages. If you only have basic knowledge as you say, I don't want to give you a procedure since you need to fully understand yourself that you are doing. Better to find someone that can.

Secondly, you need to install the hob properly. I'm not sure about the cable you have on the picture, what those two white connectors are. You shall connect the hob according to this alternative below. Check the markings on your hob to confirm that it contains the same alternative as this one that I picked from the users guide. You do not need double neutral conductors so you have have on conductor in the cable that is unconnected.

use the wago connectors.

Wago 221 or 222 is fine, not 773. I see that you have bought a mix. But the connection box on the picture is not really suitable since you also need to have a cable anchorage of some kind to prevent that the cables are pulled out of the box. A better choice is a "anslutningsdosa" which have all that built-in (so it replaces the Wago's too).



You can also install two socket outlets and corresponding connectors on the cables from the hob and oven, but that is a little bigger installation.

if the wires from fuse box are 3 phase, and the oven wires are not, any risk with connecting them through wago connector ( together with induction hob).

No "if", you need to be 100% sure. I am quite sure that both the oven and hob is 230 V so they can be combined on the same circuit. But you need to assure that your connection box in the wall contains three phases, neutral and protective earth.

the instruction for oven says there should be isolator switch with min 3mm gap. Is this some thing that is normally built in the fuse box?

Correct, you have that "isolator" in the fuse box, no additional switches are needed.