Current-limited contact arrangement has current loops in planes parallel to central plane and near contact opening path, and quenching plates held in two-part cassette of insulating material

摘要

The arrangement has a fixed contact (111), two current loops (117) on both sides near the central plane (X,Y) of the contact arrangement, a contact arm with a movable contact that can be brought in and out of contact with the fixed contact and a light arc quenching device. The current loops lie in planes parallel to the central plane and near the contact opening path. Quenching plates (131) are held in a two-part insulating cassette (15,17).