Whole house surge protection

I think the whole house surge protectors are made of silicon oxide vasistors, which is suppose to be reusable over and over, unlike MOVs.
02-12-13: 02-12-13: Dracule1

Dracule1,

Not sure about that. I believe most are MOV type.

Eaton (Cutler Hammer), Square D, Leviton, and Siemens, use multiple MOVs.

More reading material.
[url]http://surgelogic.com/home/support/faqs.html[/url]
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Jea, looks like many home surge protection units use MOVs. I asked a master electrician in my area. He recommended the Eaton CSHP Ultra which uses MOVs.

If you are really serious get the environmental potentials ep2050 with the ep2750 and be done with it. Check the archives here.

Thanks Lifeengineer. I looked into the EP products. Looks very interesting. However, the EP2050 is only rated at 12.5 kA of max surge current. According to my electrician, the higher the max surge current and power rating, the better the protection against catastrophic surge damage. The Eaton CHSP Ultra is rated at 180 kA max surge current and 2880 joules. Not sure how many joules EP2050 is rated at. However, I am very intrigued by the waveform correction and filtering provided by EP products. Don't you think the EP2050 surge protection is somewhat limited?

Also, EP doesn't back up their surge protection with any warranty, unlike Eaton CSHP Ultra that comes with $75,000 warranty against damage.