The utility model discloses a control divides off line to construct with protection switch with novel trouble belongs to electrical equipment technical field, has solved traditional trouble and has divided the off line to construct the problem that break -time is long, intermediate link is many, electric conductive property is poor and the loss ratio is great. Main left side board, right side board including interconnect, be equipped with handle components between left side board and the right side board, have hasp subassembly, the company's of dropout board subassembly, the electro -magnet company board subassembly of hasp return spring, the hasp subassembly is connected with electromagnetism release, the company's of dropout board subassembly respectively, the company's of dropout board subassembly still is connected with the trace that resets, handle components with be equipped with the energy storage component between the company's of dropout board subassembly. The utility model discloses think about ingeniously, flexible movements are fast, long service life, but wide application in industry, commerce and civilian installations field.