No, there are 3x 20A MCBS (symbols as per sans say "circuit breaker suitable for isolation" in the DB off the E/L on each phase, and cables go straight the wall box. apparently, the UFH guys are going to connect their control unit to the 4x2 wall box. (thats what they told me anyways.)
Are you saying i need to have the "green" toggle breaker or the same double pole type breaker used for geysers (combos), breaking both L+N for each UFH circuit?
Edit: Called him to ask about it, and he confirmed that plans on coming back once the UFH guys are ready to connect up and test. When that happens, he will install combos for each circuit. Apparently on the day, the supplier in question did not have stock of the CBI units so he used what he had spare in his van - the 20A MCB's. He apologized profusely for the error on the invoice and was unaware i even had it yet lol - his partner does his invoicing and she sent the invoice out based on equipment list he wrote down after leaving site.
Whether or not he made an error or is back-peddling(honestly doubt it), seeing your comments confirming that he is still being competitive and given my history with him, I'll accept the error and am happy for him to come and change the to the correct equipment.