The utility model does not need to screw the air opening protective cover. The plastic guide rail can be installed into the profile only when the guide rail is clamped in place to avoid the situation that the screw is not punched and missed inspection. The structure has no protrusion and does not occupy space. The air opening protective cover surface is flat and flat, and the stress is not easy to be damaged, and the opening of the protective cover does not increase the operation obstacles.

The utility model air switch protective cover matches various types of air switches, such as Chint, abb, Schneider, Delixi, Nader, Tianzheng and leakage protection, which solves the problems of high cost, long time and low efficiency caused by customization