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.

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 depression along a mating end thereof, the mating ends of the first and second stationary contacts defining edges of the depressions;
• and
• a movable contact having a mating side that includes a planar surface and first and second protrusions that project beyond the planar surface towards the first and second stationary contacts, the first and second protrusions spaced apart from each other along a length of the movable contact, wherein the movable contact is reciprocally movable into and out of a closed position relative to the first and second stationary contacts,
• wherein, in the closed position, the first protrusion of the movable contact projects into the depression of the first stationary contact and engages the edge thereof at multiple contact points, and the second protrusion of the movable contact projects into the depression of the second stationary contact and engages the edge thereof at multiple contact points.