What might be causing the protector to frequently trip or experience unexpected power outages?

-Grid issues: The grid voltage itself is unstable, fluctuating significantly, or at a critical point in the protector's operating range; the neutral conductor may have poor contact.
-Product settings: The protector's overvoltage or undervoltage protection settings may be incorrect.
-Product failure: An internal component of the protector (such as the disconnect relay) may be faulty.

Suggestion: First, measure the voltage at the input to see if it's normal. If the voltage is normal, there may be a product issue and further inspection or contact after-sales service is necessary.