guys, I tried to make an SSR for my window Air conditioner 2 Tonnes "2.5kW" the problem the Triacs get damaged instantly I tried 4 Triacs so far 2 BTA41 and 2 BTA24 I tried different circuits, I'm suspecting the Triacs to be counterfeited or something because I calculated the current to the compressor it was around 11A@240V and those Triacs can handle 41A and 24A. I mean by damaged that they fail closed, they will not turn-off even if I cut the DC from the Opto-isolator and when I checked the terminals there was continuity between MT1 and MT2.
I know it's better to use contactors with AC but they are so bulky and need transformer and a big one 4A@24V to control them.
Is the problem with my parts or I'm missing something? PS: The resistors are 1W, The Opto-Isolator is MOC3063.