What is the difference between the power supply lighting protection device and the power supply lightning protection box?

There is no difference in essence, the name is different.

Generally used inside the device, such as communication Power Supply, UPS, there are lightning protection devices, basically all of them are Class D lightning protection (Reference to the German lightning protection standard, 20KA, 8uS), the structure is three varistors (Connected between the 3-phase live line and the neutral line) and a gas discharge tube (between the neutral line and the protective earth), each device is in front of the fuse or open to prevent the lightning arrester from catching fire when a severe lightning strike occurs. There is an alarm contact and the device alarm will be triggered when the fault occurs.

Lightning protection box:

Generally used in the computer room (also known as TVSS), such as IDC data center, small and medium-sized machine room, is essential, there is one or more enhanced lightning protection device, the entire lightning protection box is generally according to Class B or Class C The lightning protection standard design (also referred to as the German lightning protection standard) is more complex in structure, has a historical record, can record the number of lightning strikes, and has a fault alarm function.

Shenzhenshi Zhenhuan Electronic Co.,Ltd 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.