DEVICE OF INSTANT SWITCHING OF THE SWITCH IN THE CAST HOUSING Russian patent published in 2017 - IPC H01H71/24 

FIELD: electricity.

SUBSTANCE: device includes a housing, a magnetic part located in the housing for generating a magnetic attraction force when an emergency current flows through it, an armature adapted to be facing the magnetic portion. The anchor turns to the magnetic part under the influence of the magnetic attraction force, the armature spring to allow the armature to spring back to its original position after the removal of the magnetic attraction force, and also the part to maintain the gap limiting the armature rotation, so that when an emergency current occurs, formed between the armature and the magnetic part. The portion for maintaining the gap includes a rotation limiting element, configured to be on the armature rotation path between the armature and the magnetic portion.

EFFECT: fusion between the armature and the magnetic part due to the occurrence of an emergency current can be prevented.

20 cl, 12 dwg