230 or 400 V radiator?

[Trojadam]

Hello building friends, I have a radiator that has given up. This is what the socket looks like, is it 230 or 400 v that's applicable?!

Best regards

 

[hus520]

Similar thread here

https://www.byggahus.se/forum/threads/element-230v-men-el-installationen-verkar-vara-2-fas.472839/

 

[Harald Blåtumme]

400 V because the black and blue are connected between L1 and L2. But measure to be sure.
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Or hmm... I see now that there's an N in parentheses after L2 upon closer inspection. So you must measure; it could be that the radiator comes in two variants 230/400 V but they used the same label.

 

[Avemo]

400 V because the black and blue are connected between L1 and L2. But measure to be sure.

No, that is a hasty conclusion. LVI does not have different boxes for 400V and 230V. It says on terminal 2: "L2 (N)". It is impossible to know by looking at the box. Either you have to look at the nameplate on the old element or measure between black and blue.