FAQ02007 of Power Supplies FAQ

Generally speaking, it is possible to connect a load up to 100% of the rated output capacity (see note), but there are drawbacks. When Power Supplies are operated near their rated output capacity, inrush currents and load variations may trigger the overcurrent protection function, causing the output to stop and reducing the lifetime of Power Supplies. We recommend normal operation at about 70% to 80% of the rated capacity.

Note:There are cases when it is not possible to connect a load up to 100% of the rated capacity (for example, when the Power Supply is being used in parallel operation).