Like...?That's true in this case, but Bernard's point is a good one. Mind, there are plenty of wholesalers selling copy products if not actual counterfeits.Maybe because the OPs board is discontinued and ebay is one of the few places you can get parts now?
I am still trying to track a suitable match, and came across this site;
http://www.electricalcomponentsdire...1E-1PB40-B-curve-40A-RCBO-30mA--34.html#SID=2
Is this suitable? Anyone used the company before?