ARC-CONTROL MEMBER Russian patent published in 2000 - IPC

FIELD: electrical engineering; hand- operated and automatic circuit-opening devices. SUBSTANCE: arc- control member in the form of arcing clamp has upper effective part built up of two narrow side strips with opening in-between, rear wall, lower supporting part, and shield; the latter is essentially extension of upper-part side strips facing upward and formed from central part of rear wall pre- notched and bent up; side components on non-shield end are joined together through connecting strap. Arc-control member is joined with contact holder of U-shaped fixed contact carrying contact member on its upper smaller flange; when the latter is placed with its loose end onto connecting strap, it occurs in opening between side strips of upper effective part of arc-control clamp and supporting part of the latter is mounted on lower greater longitudinal flange of contact holder. EFFECT: improved electrical endurance of circuit-opening device, reduced material input. 3 dwg