The utility model discloses an electric switch device, include: the first contact subassembly and the second contact subassembly of establishing ties, wherein first contact subassembly has trouble current -limiting ability, breaks down, and first contact subassembly divides absolutely prior to second contact subassembly. The utility model discloses an electric switch device arranges through the position that to make two contact subassemblies to divide according to fixed order disconnected with breaking current setting, avoids appearing the disconnected sequence error of branch that causes because the performance mismatches to avoid component damage or electrical accident.