My BX750MI-GR has saved my precious data on two occasions. Earlier this year, my seven year old, well used waffle iron shorted, popping loudly and sparking quite brightly in the process, probably because of all the gunk that had accumulated inside its less cleanable interior over the years. That not only made my breaker trip, but also blew the 16 amp main fuse. The UPS kicked in immediately, making a klick and a beep, which felt amazing. That was my first time ever.
As for the second time, see this post.
I think I have a [Brennenstuhl extension Lead]((https://www.brennenstuhl.co.uk/index.php?module=shop_articles&index[shop_articles][action]=overview&index[shop_articles][category]=143&index[shop_articles][attrib][Steckdosenleiste1Details%2FLayout%2Ftab_electrical_values%2Fovervoltage_protection%2Fwith_over_voltage_protection][]=Yes&index[shop_articles][attrib][Steckdosenleiste1Details%2FLayout%2Ftab_plug_system%2Fsocket%2Fnumber_of_socket_outlets_total][min]=3&index[shop_articles][attrib][Steckdosenleiste1Details%2FLayout%2Ftab_plug_system%2Fsocket%2Fnumber_of_socket_outlets_total][max]=12&index[shop_articles][attrib][Steckdosenleiste1Details%2FLayout%2Ftab_plug_system%2Fsocket%2Fnumber_of_socket_outlets_total][min_abs]=3&index[shop_articles][attrib][Steckdosenleiste1Details%2FLayout%2Ftab_plug_system%2Fsocket%2Fnumber_of_socket_outlets_total][max_abs]=12&index[shop_articles][attrib][Kabel%2FLayout%2Ftab_general%2Fcable_length][min]=1&index[shop_articles][attrib][Kabel%2FLayout%2Ftab_general%2Fcable_length][max]=10&index[shop_articles][attrib][Kabel%2FLayout%2Ftab_general%2Fcable_length][min_abs]=1.8&index[shop_articles][attrib][Kabel%2FLayout%2Ftab_general%2Fcable_length][max_abs]=10&token=kLTw6RUXs6) with surge protection, but other that, I have never even considered that. I need to read up on what it is.
I had to look, I have the APC-Surge Protector - PM6-GR.
Do you mean read up on surge protection for the phone line? I think it does make sense in general, I’ve seen more damages through there than through power lines in my life in Germany. However it’s mostly not (only) for the broken devices (which might often be insurance covered) but also against fire due to that, which could be the worse problem as a consequence.