crazyred75 wrote:
12V adapters that I am referring to are the items such has a XM Radio and a Neck Massage device that had removable adapters/chargers. They were plugged into a surge protector. Other hardwired items such as speakers, or the toaster were fine.
Maybe I am not explaining it properly, but I read what was on the back of the adapter.
Thanks, presumably these are plugged into 120vac and not 12vdc. Anything plugged into 12vdc shouldn't be affected.
My XM radio operates on 6vdc and has adapters to plug into 12vdc or 120vac.
What you had damaged are what many people refer to as 'wall warts' which convert 120vac to whatever power is needed for the appliance. I think correctly they are a 'power supply'.
To avoid this issue in the future I would suggest that anything capable of operating on 12vdc be connected to 12vdc. The converter/battery then provides some protection from damage.
Like many have said, you probably experienced an open ground allowing 240v to be supplied to your 120v items.
