Current limiting switch capable of rapid circuit breaking
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United States of America Patent
Stats
-
Mar 9, 1982
Grant Date -
N/A
app pub date -
May 19, 1980
filing date -
May 21, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Current limiting switch for rapid circuit breaking, including at least one pair of contacts, one contact being mounted stationary and the other being mounted on a movable arm. The contact arm is rotatable about a fixed point upon surpassing a predetermined current threshold value, by means of an electromagnet energized by the current passing through the switch. The electromagnetic means comprise an electromagnet and a first and a second armature cooperating with the electromagnet, in which the first armature drives the movable contact in the direction of disengagement and the second armature releases a locking device, which blocks the movable contact in the direction of movement until the current threshold is reached.
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