At least in Germany, surge suppressors are hierarchical of type 1, 2 and 3. Type 1 handles the major blast, followed by type 2 to protect the installation and type 3 for sensitive electronics. The OP apparently just had a type 3 surge suppressor that unsurprisingly blew.
Afaik the proper way is having a proper lightning rod together with the aforementioned cascade of surge suppressors. And of course a PE!
Afaik the proper way is having a proper lightning rod together with the aforementioned cascade of surge suppressors. And of course a PE!