Originally Posted by Pacostaco
It also does more than just protect against surge. It has many other features such as high voltage or low voltage protection.
The term 'surge' has no consistent definition. For example, if it protects from a low voltage (below 104 volts), it does surge protection. If it protects from a polarity reversal, that is surge protection. Different devices protect from different type of surges. The term surge is easily subverted by what is told to layman.
Protecting from high voltage, low voltage, open neutral, and missing safety ground are desired and done by that Progressive. But appreciate what they define as Mode Surge Protection. It only claims to protect from a type of surge that typically does not damage appliances. It cannot protect from a typically destructive surge (transient).
For example, let's say a 4000 volt transient is incoming on a hot (black) wire. That protector will connected 4000 volts to all appliances via the black wire. And put maybe 3670 volts on the neutral (white) and safety ground (green) wires. It simply gives that transient even more potentially destrutive paths into appliances.
Another has described a protector cabled to the pole. That protector can protect from this destrutive transients IF connected low impedance (ie within feet) to earth ground. Your protector would be too far (too many feet) away.
The Progressive does protect from other and more common 'surges'. Since a typically destrutive transient is rare (maybe once every seven years), then you may not be concerned. However appreciate what it does and does not do. Subjective sales brochures will never be totally honest. Spec numbers say so much more.