In the event of an accident, it can assist the system to withstand the trip of a maximum unit, without touching the low-frequency relay action to jump off the user's load.
In case of an accident, it can assist the system to withstand the tripping of a maximum unit without touching the low-frequency relay action to jump off the user load.
In case of an accident, it can assist the system to bear the trip of the largest unit, without touching the low-frequency relay action to trip off the user load.