The use of the contact circuit electromotive force and the arc extinguishing chamber with the gate plate are provided. (Including magnetic blown and balloon interrupter, magnetic blown and wide seam interrupter, magnetic blower transverse diaphragm interrupter, labyrinth interrupter, maze with arc extinguishing gate) vacuum interrupter and other forms). The disadvantage of this type of arc extinguishing is that the capacity of the contactor is large if it is large, and if the volume is small, the capacity can not be increased and there are varying degrees of blowing distance. What is described herein is a fully sealed arc-extinguishing structure using a pressurized gas arc, which is more difficult to heat away from the arc column in the compressed gas than the atmospheric pressure, and the thermal conductivity increases. Arc in the arc is easy to go out.
