This value is typically used to determine the minimum current rating of the over-current protection devices (e.g., breakers and fuses) and disconnects required for the output circuit.
The controllers generally provide potentiometer-adjustable motor speed, closed-loop speed control for precise speed regulation, protection logic for over-voltage, over-current and thermal protection.
The efficiency is exceptional earning this power supply an 80-class gold rating while keeping the safest of operations with over-current over-power and under-power protection.