Jim Yanik wrote:
"William Sommerwerck" wrote in
:

It is bud's job to constantly promote lies and myths. He is paid
to promote plug-in protectors. Lying is what promoters may do.
Where are those numeric specs? bud will never provide any.
He cannot claim protection that does not exist.
Where does that energy dissipate? bud cannot say. Otherwise
he must admit that plug-in protectors are profit centers – not
protection.
Uh... In the MOV?

I thought the MOV conducted above its breakdown voltage (generally
around 300V), and the energy in the section of the AC waveform above
that voltage heated up the MOV.

Am I missing something?

Ohm's Law.
If the MOV conducts at a low resistance,the power it dissipates will be
minimal.
Thus,the surge energy gets dissipated in whatever ground it's shunted to.


Bull****. The Mov dissipates (Umov)*I*T, or
Total Energy=MOVvolts * Current * Seconds.
Or integrate over those values, if they vary in time.
The Mov voltage does NOT drop to zero, when conducting.
Where did you learn about electricity??????
Of course some currents might be enough to blow the MOV,
and that is specified in the documentation, as in how
many WATTseconds blows it to pieces.
Even then it still might provide protection, although
only once, and then blow the mains fuse.