The switching power supply power in the input power moments will appear a short (1/2~1 power cycle, EX:60Hz power 1/120~1/60 seconds) high current (according to product design is about 20~60A, please refer to the product specifications, product) boot after the return to normal current input, each time at the power supply input end transmission moment will there, this is a normal phenomenon, and will not damage the power supply. But is not recommended for power supply startup / shutdown. The other should pay attention to, if the use of multiple power supply at the same time the boot, may protect switch will cause the system distribution tripping action, suggest multiple power supply should be spaced by opening, or the use of power supply products, remote control is the product the on / off.