Board with blown MOV
Closeup of failed MOV
The burned part shown appears to be a MOV (Metal-oxide Varistor). The purpose of a MOV is to have a very high resistance until a certain voltage is reached at which point it will conduct current, in this case from “Hot” to “Neutral.” This property is useful for surge protectors. Original poster says this UPS was involved in an electrical fire. Credit:
1 ping
Name the Thing Contest - 143 - Hacked Gadgets - DIY Tech Blog says:
August 28, 2010 at 6:17 pm (UTC -5 )
[...] The item to guess was a Damaged MOV [...]