Any panel mount surge protector that you consider must be listed UL 1449 3rd Edition (the UL listing for surge protectors). This is not only for performance but also for safety reasons. If the product has not been evaluated specifically for UL 1449 3rd Edition then important end-of-life (failure mode) testing has not been performed to determine if the product will fail passively (safely) and the product may explode when subject to a fault condition and put you at risk for an electrical fire.Although it is tempting to buy a product that claims to save you money on your home’s power bill there is no documented proof from a reputable organization that substantiates these claims. Buyer Beware!
A document was released on Dec 15, 2009 by NIST (National Institute of Standards and Technology) and the US Dept of Commerce that discusses "Power Factor Correction" for residential applications. This document is available on the NIST website. There is also a reference in the NIST document to the US Dept of Energy "Energy Star" program's opinion of power factor correction devices which is located on the Energy Star website’s FAQ. Q: Do Power Factor Correction Devices (kVAR) really save money?
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