Electromechanical switch with stabilized engagement between contacts

An electromechanical switch comprising:

• first and second stationary contacts spaced apart from each other, each of the first and second stationary contacts having a respective protrusion at a mating end thereof;
• a movable contact having a mating side and defining a first depression and a second depression along the mating side, each of the first and second depressions inwardly extending from a respective edge at the mating side;
• and
• an armature assembly including a shaft coupled to the movable contact and a ferromagnetic plunger coupled to the shaft, wherein the armature assembly reciprocally moves the movable contact into and out of a closed position relative to the first and second stationary contacts based on a magnetic field induced by current through a coil of wire surrounding the ferromagnetic plunger,
• wherein, in the closed position, the protrusion of the first stationary contact projects into the first depression and engages the edge of the first depression at multiple contact points, and the protrusion of the second stationary contact projects into the second depression and engages the edge of the second depression at multiple contact points, wherein the movable contact defines an opening that is disposed between the first and second depressions along a length of the movable contact, and the shaft is received in the opening.