That model transfer switch has limited surge/voltage protection.
Transfers to generator power automatically when energized after 30 second delay (generator mode). When both shore and generator power are available, generator dominates after a 30 second delay. Once generator shuts down, shore power activates after 3 second delay.
Limited protection from faulty park power
Provides protection against:
Should have a Power Protection device on shore power kune before that transfer switch
Something that Checks CG Power Voltage, trips on Hi/Lo AC Voltage etc
Here is info about your ATS (Auto Transfer Switch)