Protective industrial switch

The utility model discloses a protective industrial switch, and relates to the technical field of network equipment. Comprising an aluminum alloy heat dissipation machine shell, a switch mainboard and a power panel are installed in the aluminum alloy heat dissipation machine shell, the switch mainboard and the power panel are electrically connected, a heat guide plate is arranged in the aluminum alloy heat dissipation machine shell, and embedding openings are formed in the two sides and the bottom of the aluminum alloy heat dissipation machine shell. The two sides and the bottom of the heat guide plate all extend into the embedding opening. According to the protection type industrial switch, a heat dissipation hole structure is replaced by adopting a mode of embedding the heat guide plate into the shell, so that the whole shell is of a totally-closed structure, internal hardware conducts heat to the outside through the heat guide plate with rapid heat conduction and heat diffusion functions, heat dissipation