FIELD: electrical engineering; low-voltage vacuum circuit- opening devices. SUBSTANCE: material used for manufacturing butt-end contact of vacuum arc-control device incorporates in its composition molybdenum, copper, and nickel, proportion of ingredients being as follows, mass percent: nickel, 2.9-3.5; copper, 11.0-13.5; molybdenum, the rest. EFFECT: enhanced electrical endurance of apparatus contacts. 1 cl, 1 tbl
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