A relay includes a contact part including two sets of movable contact parts, each set including a movable contact piece, a movable contact unit, a static contact unit and a movable contact leading-out piece, at least one movable contact leading-out pieces is provided with an avoidance notch; the static contact unit having the avoidance notch including at least two static contacts; and a push rod assembly including a first and second push rods, the first push rod being movably passing through the avoidance notch of one of the movable contact leading-out pieces and connected with the movable contact piece of the other the movable contact part; the second push rod being connected with the movable contact piece of the movable contact part.

A bistable relay and a bistable actuator are provided. The bistable actuator includes a magnetic latching mechanism and an electromagnet. The magnetic latching mechanism includes a rotation shaft, a pillar-shaped permanent magnet, a columnar hollow magnetic conductor and two shells, and operates between a first and second stable states. The columnar hollow magnetic conductor surrounds the pillar-shaped permanent magnet wrapping the rotation shaft, and maintains a gap with the pillar-shaped permanent magnet. The electromagnet is connected to the columnar hollow magnetic conductor for driving the pillar-shaped permanent magnet to rotate, so as to switch the magnetic latching mechanism to the stable state. During a process that the magnetic latching mechanism is switched to the stable state, the rotation shaft rotates synchronously along with the magnetic latching mechanism to drive an impact system to move relative to a contact system, so as to contact or disconnect the contact points.

The bipolar magnetic latching relay comprises a coil assembly, a magnetic steel assembly that contains a permanent magnet and armatures, as well as two contact devices that are mounted at both sides of a base, wherein the magnetic steel assembly is pivotally connected with the base through a revolving pair, the magnetic steel assembly swings between two positions under the driving of an electric signal of the coil assembly and is retained in one swing position due to the permanent magnetic force of the magnetic steel assembly, and the swing synchronously drives the two contact devices to deflect, such that two pairs of first movable contacts and static contacts are subjected to closing/disconnecting fit. The magnetic steel assembly is provided with two driving heads that synchronously rotate along with the magnetic steel assembly and extend to the outside from the same direction. The relay further comprises two guide transmission parts that connect the two contact devices and the magnetic steel assembly, wherein a guide mechanism by which each guide transmission part moves along the swing direction of the free end of the movable flat spring is provided between the guide transmission part and the base, a driven end of the guide transmission part is connected with a driving head through a driving connection structure, and a driving end of the guide transmission part is coupled to the free end of the movable flat spring through an elastic transmission structure, such that the two guide transmission parts are the same in movement direction and simultaneously act.