Are the UL and CSA labels a guarantee of quality?
Yes and no. The UL and CSA labels are mandatory but they only indicate a minimum level of safety. The UL 1449 2nd Edition and CSA do not verify that the product meets the manufacturers specifications or signify the products level of protection. The surge voltage rating only states that the product contains suppression components. ULs highest surge rating is very obtainable so that even the least capable product can receive a respectable rating. As per the US Navy requirement, the MGD-IT Protector passed MILSTD 1399 which is a much more stringent test than those used in general industry standards.
