What will we notice about Inrush Current?

At input side, there will be (1/2 ~1 cycle, ex. 1/120 ~ 1/60 seconds for 60 Hz AC source) large pulse current (20~100A based on the design of switching power supply.) at the moment of power on and then back to normal rating. This "Inrush Current" will appear every time you turn on the power. Although it will not damage the Power Supply, we suggest not turning the power supply ON/OFF very quickly within a short time. Besides, if there are several Power Supplies turning on at the same time, the dispatching system of AC source may shut off and go into protection mode because of the huge inrush current. It is suggested that these power supplies start up one by one or use the remote control function of switching power supply to turn them on/off.

Shenzhenshi Zhenhuan Electronic Co.,Ltd(www.szzhpower.com) was founded in 2008, specialize in external power adaptor, ac dc adapter, Outdoor Waterproof power supply, led driver , Power Transformer, switching power supply, dimmable or non-dimmable LED Drivers and Battery Charger in Shenzhen, China.