An electrical contact material (10) having: a conductive substrate (1) formed from copper or a copper alloy; a first intermediate layer (2) provided on the conductive substrate (1); a second intermediate layer (3) provided on the first intermediate layer (2); and an outermost layer (4) formed from tin or a tin alloy and provided on the second intermediate layer (3), wherein the first intermediate layer (2) is constructed as one layer of grains extending from the conductive substrate (1) side to the second intermediate layer (3) side, and wherein, in the first intermediate layer (2), the density of grain boundaries (5b) extending in a direction in which the angle formed by the grain boundary in interest and the interface between the conductive substrate and the first intermediate layer is 45 or greater, is 4 m/m.sup.2 or less; a method of producing the same; and a terminal.

An electric current switching device including: a first line portion including a first electrical conductor and a fixed contact secured to the first conductor; and a second line portion including a second electrical conductor and a movable contact in rotation configured to be moved between: an open position preventing the passage of current, and a closed position allowing the passage of current. The movable contact extends, in the closed position, in a direction transverse to a direction of extension of the first electrical conductor. The fixed contact includes a first portion configured to be in contact with the movable contact and a second portion fixed to the first electrical conductor, wherein the first portion and the second portion are offset in the direction of extension of the first electrical conductor.

An electric current switching device including: a first line portion including a first electrical conductor and a fixed contact secured to the first conductor; and a second line portion including a second electrical conductor and a movable contact in rotation configured to be moved between: an open position preventing the passage of current, and a closed position allowing the passage of current. The movable contact extends, in the closed position, in a direction transverse to a direction of extension of the first electrical conductor. The fixed contact includes a first portion configured to be in contact with the movable contact and a second portion fixed to the first electrical conductor, wherein the first portion and the second portion are offset in the direction of extension of the first electrical conductor.

A compact vacuum interrupter has an insulator element, a moving contact connection, a fixed contact connection, a moving contact, and a fixed contact. The moving contact has a moving contact rod and a moving-contact contact element. The fixed contact has a fixed contact rod and a fixed-contact contact element. The moving contact is formed with a material that is mechanically stronger than a material of the fixed contact.

A compact vacuum interrupter has an insulator element, a moving contact connection, a fixed contact connection, a moving contact, and a fixed contact. The moving contact has a moving contact rod and a moving-contact contact element. The fixed contact has a fixed contact rod and a fixed-contact contact element. The moving contact is formed with a material that is mechanically stronger than a material of the fixed contact.

An electromechanical switch includes a switch housing having a main body forming a chamber with fixed contacts coupled to the switch housing each having a mating end in the chamber and a terminating end exterior of the switch housing. The electromechanical switch includes a movable contact in the chamber movable between an open position and a closed position. The movable contact includes movable mating surfaces configured to be coupled to fixed mating surfaces of the fixed contacts in the closed position and separated from the fixed contacts in the open position. The electromechanical switch includes an actuator with an armature operably coupled to the movable contact. The fixed mating surfaces and/or the movable mating surfaces include textured surface features such that mating interfaces between the fixed contacts and the movable contact each have numerous points of contact.

An electromechanical switch includes a switch housing having a main body forming a chamber with fixed contacts coupled to the switch housing each having a mating end in the chamber and a terminating end exterior of the switch housing. The electromechanical switch includes a movable contact in the chamber movable between an open position and a closed position. The movable contact includes movable mating surfaces configured to be coupled to fixed mating surfaces of the fixed contacts in the closed position and separated from the fixed contacts in the open position. The electromechanical switch includes an actuator with an armature operably coupled to the movable contact. The fixed mating surfaces and/or the movable mating surfaces include textured surface features such that mating interfaces between the fixed contacts and the movable contact each have numerous points of contact.