Permanent magnetic unicoil contactor without power consumption

The utility model relates to a permanent magnet single coil contactor without power consumption, which consists of a coil, a permanent magnet, a static contact, a moving contact, a sheet spring, an arc extinguisher, a contact carrier, an auxiliary switch, a soleplate, a cushion pad, a base, a magnetic yoke, a reaction spring and a controller, and is characterized in that: the static contact is fixed with the soleplate; the contact carrier passes through the middle of the soleplate to fix the moving contact and sheet spring on the upper end of the contact carrier; the permanent magnet fixes the lower end of the contact carrier to be symmetrical to the magnetic yoke; the coil and the magnetic yoke are fixed on the base and form a whole fixedly with the soleplate. The utility model has the advantages of small consumable, low temperature rise, no power consumption, no noise, light weight, small volume, low manufacturing cost, nonflammable coil, good stability, high reliability, long service life and unique techni