Hi thanks for reply. This is the oven regulator. Tried to upload pic showing the 2 terminals but it won’t let me. First it said had to be less than 2MB so resized pics and tried again but then it said they have to be less than 19.5 KB !
Number plate has no ART number but it says
Nr.2003
MOD:SI-E9T-MB-CH
03360647
Hope this helps
Cheers