Switching contactor

An electrical contactor comprising:

• a first terminal connected to a pair of fixed contacts on opposite faces of a fixed conductive member;
• a second terminal;
• a pair of movable arms of electrically conductive material connected to the second terminal, and carrying movable contacts at an end remote from the connection to the second terminal, the movable arms being arranged in aligned opposition to each other such that their remote ends are on either side of the fixed conductive member, with the movable contacts aligned with the fixed contacts, and are separated by a predetermined gap over a major portion of their length;
• an actuating arrangement including a wedge shaped member disposed between inner inclined surfaces of the movable arms, arranged to separate the movable arms so as to open the contacts, the wedge shaped member being movable from a first position in which it separates the movable arms, to a second position where it allows the arms to move freely towards each other, and a movable member that, in a first position is not engaged with the movable arms, to allow the wedge shaped member to separate the movable arms and in a second position engages with the movable arms to press the movable contacts against the fixed contacts;
• and
• flexible tangs formed as a part of the movable arms,
• wherein the movable member, in the second position, engages the flexible tangs and deflect the tangs inwardly, to enhance the contact pressure and reduce bounce.