主权项 |
1. An electrical contactor comprising:
a first terminal having a fixed member with at least one fixed electrical contact; a second terminal; an electrically-conductive movable arm in electrical communication with the second terminal and having a movable electrical contact thereon; and actuator including a centrally mounted magnet, first and second drivable coils located either side of the magnet, a magnetically-attractable rocking armature pivotable at a point between the first and second coils, and an actuation element connected to an end of the rocking armature for actuating the movable arm; wherein driving the first coil causes a decrease of magnetic flux in the first coil, causing a corresponding increase in magnetic flux in the second coil, the rocking armature thus latching to the second coil, thereby actuating the movable arm in a first direction, and driving the second coil causes a decrease of magnetic flux in the second coil, causing a corresponding increase in magnetic flux in the first coil, the rocking armature thus latching to the first coil, thereby actuating the movable arm in a second direction. |