What is considered the best type of surge arrestor for residential main protection and related let-through rating?

Tx, nmwirez

Probably the best available and reasonable for a low exposure risk such as residential would be Leviton. These would be available only at electrical distributors.

Review their Surge Protection catalog at:
Site:&nbsp PDF Library Home


A medium level product would be by American Power Conversion:
Panelmount Surge Protection Device, 120/240V, 40kA/ph

A high end unit, probably too costly for residential would be Liebert:
http://www.liebert.com/assets/produc...t/sl_22034.pdf

One thing to consider is even thou the panel may be in a home, is how close is the home to any commercial or industrial businesses. If your close to a factory of any size, or a large supermarket, then a medium size unit may be recommended, as the likelihood of larger surges or transients is greater than if the home is in a suburb or rural location.

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Originally Posted by nmwirez

What is considered the best type of surge arrestor for residential main protection and related let-through rating?

Tx, nmwirez

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Thanks tk