ELECTRIC AUTOMATIC SWITCH

摘要

A low-loss electric automatic switch for the protection of electric current consumer devices and electric circuits preferably corresponding to size 1 according to DIN 43880 and has a module width 18 mm intended to be built in as a selective main switch. The switch of the invention is conceived in a way that it contains a magnetic yoke (4), in which a leading bushing (5) is positioned between both free ends of the magnet yoke (4), whereas a coil (6) is positioned on the bushing (5) and at one end of the bushing (5) there is a core (7), and at the opposite end of it there is a large anchor (8) and between the core (7) and the large anchor (8) and within the large anchor (8) there is a small anchor (9), whereas in the core (7) there is a bar (10) that moves along its axle anf leans at one end on the small anchor (9) and at the other freely protrudes from the magnet yoke (4); furthermore in the aera between the clamp (2) and the bar (10) there is a support (16), whereby the three-position converter (18) is fastened via two springs (19) and (20) on a swing hinge (21); and on the magnet yoke (4) in the vicinity of the arc bus (13) there is another contact (15), which is electrically conductively connected with the magnet yoke (4).