Alternating current switch contactor

摘要

An electrical contactor has a first terminal having a fixed member with at least one fixed electrical contact, a second terminal, and a busbar connected to the second terminal. Two conductive movable arms are connected to the busbar and have a contact thereon. One arm is biased-closed to contact the fixed electrical contact in the absence of a separating force, and the other arm is biased-open to be spaced away from the fixed electrical contact in the absence of a closing force. The first and second movable arms and the busbar are arranged so that, when the contacts close, contra-flowing current urges the movable arms towards the fixed member to increase a force between the contacts.

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; a busbar in electrical communication with the second terminal; at least two electrically-conductive movable arms connected to the busbar and having a movable electrical contact thereon; a biased-closed movable arm of at least two electrically-conductive movable arms being preformed and preloaded to be biased towards with the said at least one fixed electrical contact in the absence of a separating force; and a biased-open movable arm of at least two electrically-conductive movable arms being preformed and preloaded to be biased away from the said at least one fixed electrical contact in the absence of a closing force, wherein the biased-closed and biased-open movable arms and the busbar being arranged so that, when the contacts close, contra-flowing current urges the movable arms towards the fixed member to increase a force between the contacts.