FIELD: electricity.
SUBSTANCE: invention relates to a module of low, medium or high voltage, comprising at least one short-circuiting device, in which a movable contact may be shorted on a fixed contact. Along the trajectory of movable contact (50) movement there are at least two separate vacuum areas or vacuum volumes located (60, 100).
EFFECT: prevention of breakthrough at rated voltage.
18 cl, 1 dwg
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