Which IEC category is described as Receptacle outlet circuit; plug-in loads?

Which IEC category is described as Receptacle outlet circuit; plug-in loads?

• A. II - Receptacle outlet circuit; plug-in loads
• B. I - Protected Electronic circuits
• C. III - Distribution wiring including mains
• D. IV - Origin of installation at the Utility level

Answer: (A)

In IEC surge protection categories, categories describe where protection sits along the path from the utility to the device. Category II is the level that covers receptacle outlet circuits and plug-in loads—the energy that flows through wall outlets to consumer devices. This includes things like power adapters, lamps, and appliances that you plug into a regular outlet. Category II sits after the main distribution but before the devices themselves, which is why it’s described as receptacle outlet circuits and plug-in loads. The other levels cover different parts of the system: Category I relates to protected electronic circuits not directly tied to mains; Category III covers distribution wiring inside the building including mains and panels; Category IV refers to the origin at the utility service entrance. So the description fits Category II precisely.

In IEC surge protection categories, categories describe where protection sits along the path from the utility to the device. Category II is the level that covers receptacle outlet circuits and plug-in loads—the energy that flows through wall outlets to consumer devices. This includes things like power adapters, lamps, and appliances that you plug into a regular outlet.

Category II sits after the main distribution but before the devices themselves, which is why it’s described as receptacle outlet circuits and plug-in loads. The other levels cover different parts of the system: Category I relates to protected electronic circuits not directly tied to mains; Category III covers distribution wiring inside the building including mains and panels; Category IV refers to the origin at the utility service entrance. So the description fits Category II precisely.