A multi-directional switch is provided to include a spring electrode supported by a base housing and having a plate shape divided in multiple directions. A fastening bolt is fastened to the base housing through penetrating the spring electrode and has an upper surface on which a curved surface is formed. A P-type switch is supported by the curved surface of the fastening bolt and includes a push part configured to press the spring electrode.

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

An electromagnetic double-armature relay with an excitation coil comprises a first yoke and a second yoke, which are arranged on the excitation coil. The first leg of the first yoke serves as a support for a first armature and the first leg of the second yoke serves as a support for a second armature. The double-armature relay has a first comb which cooperates with the first armature, and a second comb cooperates with the second armature. In addition, the double-armature relay has at least two contact bridges, each of which is detachably arranged with a first end in the first comb and the second end in the second comb and comprises two contact rivets oriented in opposite directions, and fixed contacts which are arranged opposite the contact rivets of the contact bridge. The arrangement of the two yokes and armatures are such that the two combs perform opposing translational movements.

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

A multi-directional switch is provided to include a spring electrode supported by a base housing and having a plate shape divided in multiple directions. A fastening bolt is fastened to the base housing through penetrating the spring electrode and has an upper surface on which a curved surface is formed. A P-type switch is supported by the curved surface of the fastening bolt and includes a push part configured to press the spring electrode.

An electromagnetic double-armature relay with an excitation coil comprises a first yoke and a second yoke, which are arranged on the excitation coil. The first leg of the first yoke serves as a support for a first armature and the first leg of the second yoke serves as a support for a second armature. The double-armature relay has a first comb which cooperates with the first armature, and a second comb cooperates with the second armature. In addition, the double-armature relay has at least two contact bridges, each of which is detachably arranged with a first end in the first comb and the second end in the second comb and comprises two contact rivets oriented in opposite directions, and fixed contacts which are arranged opposite the contact rivets of the contact bridge. The arrangement of the two yokes and armatures are such that the two combs perform opposing translational movements.

A relay contactor is provided and includes input and output leads, a shaft assembly, an actuator and first and second bearing assemblies. The shaft assembly includes a shaft, a plate disposed on the shaft and an elastic element. The shaft and the plate are movable between an open position at which the plate is displaced from the input and output leads and a closed position at which the plate contacts the input and output leads. The actuator is coupled to the shaft at a first side of the plate and is configured to selectively move the shaft and the plate into the closed position in opposition to bias applied by the elastic element. The first and second bearing assemblies are disposed to movably support the shaft at the first side and at a second side of the plate, respectively.

A relay apparatus comprises input ports, output ports, and first and second relays. The first relay comprises: a first contact group comprising n?2 first contacts arranged in parallel and moveable between open and closed positions by a first common armature; and a second contact group comprising n second contacts arranged in parallel and movable between open and closed positions by a second common armature, wherein the first and second contacts are arranged in series in pairs. The second relay includes m<n contacts arranged in parallel and moveable between open and closed positions by a third common armature. The first and second relays are arranged in series between the input and output ports such that the relay apparatus has plural parallel switching paths. A contact of the second relay is arranged in series with a first contact of the first contact group in m switching paths.

A solenoid device includes two electromagnetic coils, two stationary cores, two plungers and a yoke that surrounds the two electromagnetic coils. When a first electromagnetic coil is energized, magnetic flux flows through a first magnetic circuit that includes the first stationary core. When the two electromagnetic coils are energized, magnetic flux of the first electromagnetic coil flows through the first magnetic circuit, and magnetic flux of the second electromagnetic coil flows through a second magnetic circuit that includes a second stationary core. When energization of the first electromagnetic coil is stopped while maintaining energization of the second electromagnetic coil, the magnetic flux of the second electromagnetic coil continues to flow through the second magnetic circuit and a third magnetic circuit that includes the two stationary cores. A magnetism limiting portion is disposed in a portion of the second magnetic circuit that does not overlap the third magnetic circuit.