The utility model discloses a novel disconnected type control of energy -conserving high score and protection switch belongs to electrical equipment technical field, and it is unreasonable with protection switch structural design to have solved conventional control, the easy adhesion in contact, the easy loss of contact, contact mechanism strength requirement height and ageing fast short -lived problem, off line structure, actuation electro -magnet, fixed bolster and contact system are divided to the main trouble that includes, the trouble divides that the off line constructs, actuation electro -magnet and contact system all with fixed bolster fixed connection, the trouble divides the off line constituent bie to be connected with actuation electro -magnet, contact system. The utility model discloses action executing is fast, and is high -efficient reliable, long service life, and no eddy current loss, energy consumption and temperature rise all reduce by a wide margin, the utility model discloses use extensively, have very high practical value and application prospect.